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)I had been asked this question in an interview for internship.Enquiry is from Communication in portion Communicating, Perceiving and Acting of Artificial Intelligence

What is a top-down parser?(a) Begins by hypothesizing a sentence (the

1.	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)I had been asked this question in an interview for internship.Enquiry is from Communication in portion Communicating, Perceiving and Acting of Artificial Intelligence
Answer» Right CHOICE is (a) Begins by hypothesizing a sentence (the SYMBOL S) and successively predicting lower level constituents until INDIVIDUAL pre-terminal symbols are WRITTEN To explain I would say: A top-down PARSER begins by hypothesizing a sentence (the symbol S) and successively predicting lower level constituents until individual pre-terminal symbols are written.

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