IN HASKELL
Consider a context-free grammar with nonterminal symbols: sentence (the start symbol), noun-phrase, verb-phrase, article, noun, and verb; terminal symbols: "." (period), "a", "the", "girl", "dog", "sees", and "pets"; and the following rules:
sentence = noun-phrase verb-phrase "." .
noun-phrase = article noun .
article = "a" | "the" .
noun = "girl" | "dog" .
verb-phrase = verb noun-phrase .
verb = "sees" | "pets" .
a. Give a left-most derivation of the sentence: a girl pets the dog.
b. Draw a parse tree corresponding to your derivation.
IN HASKELL Consider a context-free grammar with nonterminal symbols: sentence (the start symbol), noun-phrase, verb-phrase, article,...
1.) Consider the following grammar in which S, A, and B are nonterminal symbols and S is the start symbol. S → 1A | 0B A → A0 | 1B B → 10A| 1 Show that the grammar is ambiguous by showing two parse trees for the sentence 1110110 using leftmost derivation.
Consider the following grammar (S, A, B, and C are nonterminal symbols; S is the start symbol; 0 and 1 are terminal symbols): S → AA A → BCB B → B0 | B1 | 0 | 1 C → 00 | 11 Which of the following sentences are in the language generated by the grammar? Show derivations for the sentences that can be generated. If a sentence cannot be generated by the grammar, explain why. a) 10010001 b) 01101101...
Automata: solve a - e
2. (10+10+10+10+10-50 points) Agrammar is a 4-tuple G, G-ON,E,11,L$) where N is a finite set of nonterminal symbols Σ is a finite set of terminal symbols is a finite set of rules S is the starting symbol Let N- (S, T s-{a, b, c} s-> ab aT >aaTb aT-ac S is the starting symbol. (a 10 points) Prove that the given grammar G is a context sensitive grammar. (b-10 points) What is the language L-...
Consider the following context-free grammar with terminals {a, b, c, d} and start symbol S. S → W | X | Y | Z W → AW D | X | Y | Z X → BXD | Z Y → AY C | Z Z → BZC | ε A → a B → b C → c D → d (a) Give a derivation tree with input string: aaaabccddd (b) What language does this CFG recognize? Give a...
3 points) Question Three Consider the context-free grammar S >SS+1 SS 1a and the string aa Give a leftmost derivation for the string. 3 points) (4 poiots) (5 points) (3 points) sECTION IWOLAttcmpt.any 3.(or 2) questions from this.scction Suppose we have two tokens: (1) the keyword if, and (2) id-entifiers, which are strings of letters other than if. Show the DFA for these tokens. Give a nightmost derivation for the string. Give a parse tree for the string i) Is...
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CSC 404 Exam 1 Question I continued - 9. The syntax rules for most languages ignore spaces. An exception is which tises indents and therefore spaces to form the indents) to group statements (a) FORTRAN (6) Pascal (e) Python (d) Lip (e) C++ 10. Identifiers, constants and operators are typical examples of (a) tokens. (b) leafons. (c) signifiers. (d) lexicons. (e) parsicles. 0) non-terminals. 11....