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Question

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 Correct Answer Incorrect Answer
B Begins by hypothesizing a sentence (the symbol S) and successively predicting upper level constituents until individual preterminal symbols are written Correct Answer Incorrect Answer
C Begins by hypothesizing lower level constituents and successively predicting a sentence (the symbol S) Correct Answer Incorrect Answer
D Begins by hypothesizing upper level constituents and successively predicting a sentence (the symbol S) Correct Answer Incorrect Answer
E None of these Correct Answer Incorrect Answer

Solution

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

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