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QUESTION 3 Apply the CYK algorithm to the input ababaa and the grammar: S ? AB | BC A ? BA | a B ? CC | b C ? AB | a Compute the table of entries $X_{ij}$ = the set of nonterminals that derive positions $i$ through $j$, inclusive, of the string ababaa. Then, identify a true assertion about one of the $X_{ij}$'s in the list below. ? $X_{36} = \{S, A\}$ ? $X_{16} = \{S, A, C\}$ ? $X_{46} = \{\}$ ? $X_{15} = \{S, C\}$ ? $X_{25} = \{S, A, C\}$

          QUESTION 3
Apply the CYK algorithm to the input ababaa and the grammar:
S ? AB | BC
A ? BA | a
B ? CC | b
C ? AB | a
Compute the table of entries $X_{ij}$ = the set of nonterminals that derive positions $i$ through $j$, inclusive, of the
string ababaa. Then, identify a true assertion about one of the $X_{ij}$'s in the list below.
? $X_{36} = \{S, A\}$
? $X_{16} = \{S, A, C\}$
? $X_{46} = \{\}$
? $X_{15} = \{S, C\}$
? $X_{25} = \{S, A, C\}$

QUESTION 3
Apply the CYK algorithm to the input ababaa and the grammar:
S ? AB | BC
A ? BA | a
B ? CC | b
C ? AB | a
Compute the table of entries Xij = the set of nonterminals that derive positions i through j, inclusive, of the
string ababaa. Then, identify a true assertion about one of the Xij's in the list below.
? X36 = {S, A}
? X16 = {S, A, C}
? X46 = {}
? X15 = {S, C}
? X25 = {S, A, C}

Added by Jeffrey D.

Computer Science and Information Technology

Trishna Knowledge Systems 2018 Edition

Instant Answer

Solved by Expert John Incabo

Step 1

Step 1: Initialize the table entries Xij with empty sets for all i and j. Show more…

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QUESTION 3 Apply the CYK algorithm to the input ababaa and the grammar: S -> AB | BC A -> BA | a B -> CC | b C -> AB | a Compute the table of entries Xij = the set of nonterminals that derive positions i through j, inclusive, of the string ababaa. Then, identify a true assertion about one of the Xij's in the list below. X36 = {S, A} X16 = {S, A, C} X46 = {} X15 = {S, C} X25 = {S, A, C}