What is a top-down parser? a) Begins by hypothesizing a sentence (the symbol S) and successively predicting lower level constituents until individual pre-terminal symbols are written b) Begins by hypothesizing a sentence (the symbol S) and successively predicting upper level constituents until individual pre-terminal symbols are written c) Begins by hypothesizing lower level constituents and successively predicting a sentence (the symbol S) d) Begins by hypothesizing upper level constituents and successively predicting a sentence (the symbol S)

What is a top-down parser?

a) Begins by hypothesizing a sentence (the symbol S) and successively predicting lower level constituents

until individual pre-terminal symbols are written

b) Begins by hypothesizing a sentence (the symbol S) and successively predicting upper level

constituents until individual pre-terminal symbols are written

c) Begins by hypothesizing lower level constituents and successively predicting a sentence (the symbol S)

d) Begins by hypothesizing upper level constituents and successively predicting a sentence (the symbol S)
by

1 Answer

Answer :

a) Begins by hypothesizing a sentence (the symbol S) and successively predicting lower level constituents

until individual pre-terminal symbols are written
by

Related questions

What is a top-down parser? a) Begins by hypothesizing a sentence (the symbol S) and successively predicting lower level constituents until individual preterminal symbols are written b) Begins by hypothesizing a sentence (the symbol S) and successively predicting upper level constituents until individual preterminal symbols are written c) Begins by hypothesizing lower level constituents and successively predicting a sentence (the symbol S) d) Begins by hypothesizing upper level constituents and successively predicting a sentence (the symbol S)

Description : What is a top-down parser? a) Begins by hypothesizing a sentence (the symbol S) and successively predicting lower level constituents until individual preterminal symbols are written b) Begins ... ) Begins by hypothesizing upper level constituents and successively predicting a sentence (the symbol S)

Last Answer : a) Begins by hypothesizing a sentence (the symbol S) and successively predicting lower level constituents until individual preterminal symbols are written

Which of the following is FALSE ? (A) The grammar S ⟶ aSb|bSa|SS|∈, where S is the only non-terminal symbol and ∈ is the null string, is ambiguous. (B) SLR is powerful than LALR. (C) An LL(1) parser is a top-down parser. (D) YACC tool is an LALR(1) parser generator.

Description : Which of the following is FALSE ? (A) The grammar S ⟶ aSb|bSa|SS|∈, where S is the only non-terminal symbol and ∈ is the null string, is ambiguous. (B) SLR is powerful than LALR. (C) An LL(1) parser is a top-down parser. (D) YACC tool is an LALR(1) parser generator.

Last Answer : (B) SLR is powerful than LALR.

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Which of the following derivations does a top-down parser use while parsing an input string ? The input is scanned from left to right. (A) Leftmost derivation (B) Leftmost derivation traced out in reverse (C) Rightmost derivation traced out in reverse (D) Rightmost derivation

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Why do I have to wait until my period begins to start taking the pill?

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Last Answer : answer:It can take two or three months to get your period back to normal if you do this, from what I’ve seen online. I don’t have periods obviously, but it sounds like a bad idea.