- How could you convert an ambiguous grammar to an unambiguous one?
- Can all ambiguous grammar be converted to unambiguous grammar?
- How can we remove ambiguity?
- How grammar is made unambiguous?
- Is Chomsky normal form unambiguous?
- Which parser can parse ambiguous grammar?
- Is every unambiguous grammar is LL 1?
- What is ambiguous grammar with example?
- What is an example of unambiguous?
- What are ambiguous examples?
- What is ambiguous grammar how it can be overcome?
- What is ambiguous grammar how ambiguity is avoided?
- What do you mean by ambiguous grammar and how do you resolve the same?
- Can an ambiguous CFG be converted into Chomsky normal form?
- Which technique is used to analyze the ambiguity of grammar?
- How can ambiguity in language be resolved?
- Which parser can parse ambiguous grammar?
- What are the 4 types of ambiguity?
- What are the three main types of ambiguity?
- What are some examples of ambiguous language?
How could you convert an ambiguous grammar to an unambiguous one?
Solution- To convert the given grammar into its corresponding unambiguous grammar, we implement the precedence and associativity constraints.
Can all ambiguous grammar be converted to unambiguous grammar?
If there is no ambiguity in the Grammar, it is unambiguous. This means that it is an unambiguous grammar if it does not contain more than one leftmost derivation (LMD), more than one rightmost derivation (RMD), or more than one parse tree for the given input string.
How can we remove ambiguity?
Expansion: Adding a word or two to the sentence can remove ambiguity.
How grammar is made unambiguous?
A grammar can be unambiguous, if the grammar does not contain ambiguity. This means if it does not contain more than one left most derivation (LMD) or more than one right most derivation (RMD) or more than one parse tree for the given input string, it is an unambiguous grammar.
Is Chomsky normal form unambiguous?
There are inherently ambiguous context-free languages, and like all context-free languages they have grammars in Chomsky normal form, so transforming a CFG to Chomsky normal form doesn't necessarily make it unambiguous.
Which parser can parse ambiguous grammar?
LR parser can be used to parse ambiguous grammars. LR parser resolves the conflicts (shift/reduce or reduce/reduce) in parsing table of ambiguous grammars based on certain rules (precedence and/or associativity of operators) of the grammar.
Is every unambiguous grammar is LL 1?
Ambiguous grammars are not LL(1) but unambiguous grammars are not necessarily LL(1) Having a non-LL(1) unambiguous grammar for a language does not mean that this language is not LL(1). But there are languages for which there exist unambiguous context-free grammars but no LL(1) grammar.
What is ambiguous grammar with example?
A Grammar that makes more than one Leftmost Derivation (or Rightmost Derivation) for the similar sentence is called Ambiguous Grammar. Example − Verify whether the following Grammar is Ambiguous or Not. For string id + id * id, there exist two parse trees.
What is an example of unambiguous?
If something is unambiguous, there are no two ways to interpret it. If your girlfriend burns all your letters, texts you that she hates you, and moves a thousand miles away, the unambiguous message is that she's finished with you.
What are ambiguous examples?
having or expressing more than one possible meaning, sometimes intentionally: His reply to my question was somewhat ambiguous. The wording of the agreement is ambiguous. The government has been ambiguous on this issue.
What is ambiguous grammar how it can be overcome?
A Grammar that makes more than one Leftmost Derivation (or Rightmost Derivation) for the similar sentence is called Ambiguous Grammar. Example − Verify whether the following Grammar is Ambiguous or Not. E → E+E|E ∗ E|id. Solution. For string id + id * id, there exist two parse trees.
What is ambiguous grammar how ambiguity is avoided?
A grammar is said to be ambiguous if there exists more than one left most derivation or more than one right most derivation or more than one parse tree for a given input string. If the grammar is not ambiguous then we call it unambiguous grammar. If the grammar has ambiguity then it is good for compiler construction.
What do you mean by ambiguous grammar and how do you resolve the same?
In computer science, an ambiguous grammar is a context-free grammar for which there exists a string that can have more than one leftmost derivation or parse tree. Every non-empty context-free language admits an ambiguous grammar by introducing e.g. a duplicate rule.
Can an ambiguous CFG be converted into Chomsky normal form?
Any context free grammar can be converted into the equivalent Chomsky Normal Form. It does not matter if it is ambiguous or not.
Which technique is used to analyze the ambiguity of grammar?
We pro- pose a technique for detecting ambiguities in a given grammar. As the problem is in general undecidable [11] we resort to conservative approximation. This is much like, for example, building an LR(k) parse table for the given grammar and checking for conflicts.
How can ambiguity in language be resolved?
Two routes for resolving ambiguous words when interpreting spoken language: use of top-down plausibility and same-level priming between words.
Which parser can parse ambiguous grammar?
LR parser can be used to parse ambiguous grammars. LR parser resolves the conflicts (shift/reduce or reduce/reduce) in parsing table of ambiguous grammars based on certain rules (precedence and/or associativity of operators) of the grammar.
What are the 4 types of ambiguity?
Phonetics, grammar, semantics, syntax, as small as punctuation and intonation can all be the cause of ambiguity. Based on this, linguists divide ambiguity into different types such as phonetic ambiguity, lexical ambiguity, syntactic ambiguity, and pragmatic ambiguity.
What are the three main types of ambiguity?
A Word, phrase, or sentence is ambiguous if it has more than one meaning. The ambiguity, however, can be noticed if one really has a linguistic knowledge of how to analyze the phrase or sentence. Of the three kinds of ambiguity - lexical, constructional (structural) and derivational ambiguity.
What are some examples of ambiguous language?
Example: The dog liked to guard the house and the postman could not make it to the door because he was barking viciously. Problem with the pronoun: The reader is not sure if 'he' refers to the postman or the dog. Is it the dog or the postman barking viciously?