A particular BNF definition for a "word is given by the following rules.
<word> :: = <letter> I <letter> <charpair> I <letter> <intpair> <charpair> :: = <letter> <letter> I <charpair> <letter> <letter> <intpair> :: = <integer> <integer> I <intpair> <integer> <integer> <letter> :: = a I b I c I ......I Y I Z <integer> :: = 0 I 1 I 2 I ......I 9
Which of the following lexical entries can be derived from $\textsf{< word >}?$
option d
Can you please explain the procedure to solve this type of problem?
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