# Can Chomsky Normal Form have more than one terminal?

In formal language theory, a context-free grammar G is said to be in Chomsky normal form if $$S → A B$$ $$A → a$$ $$S → ε$$

My question is that if $B$ in the the form of $$B → abcd$$

where $abcd$ are terminal symbol, is this still in Chomsky Normal Form? ?

• Wikipedia gives a definition of Chomsky normal form. Next time, I suggest consulting Wikipedia first. – Yuval Filmus Aug 8 '17 at 7:35