Q823
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
AnswerB.
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)
Answer: Option A
Solution
Answer: Option A
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