A particular BNF definition for a “word” is given by the following rules. <word> ∷ = <letter> | <letter><charpair> | <letter><intpair> <charpair> ∷ = <letter><letter> | <charpair><letter><letter> <intpair> ∷ = <integer><integer> | <intpair><integer><integer> <letter> ∷ = a | b | c | ….. |y| z <integer> ∷ = 0 |1|2| …… | 9 Which of the following lexical entries can be derived from < word > l. pick II. picks lll. c44?

I, II Wand Ill
I and II only
I and III only
II and III only

LohaHridoy

4 views

2025-01-04 04:42

1 Answers

AhmedNazir

Option 4 : II and III only

Statament I:pick

It consist of even character and cannot derive pick

Statament II:picks

:: = // one character

:: = // three character

:: = // five character

:: = picks

Therefore picks is the lexical entries can be derived from < word >

Statament III:c44

:: = // one character

:: = // one character and two integer

:: = c16

:: = | | .

Therefore c16 is the lexical entries can be derived from < word >

Therefore option d is correct

4 views Answered 2022-09-04 04:29

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