Question: CFG: S - > SSS | aXb; X - > ba | bba | abb Does a leftmost derivation exist for all the words defined

CFG: S->SSS|aXb; X->ba|bba|abb
Does a leftmost derivation exist for all the words defined by the given CFG?
No for all the words
Yes for some words but no for some other words
Yes for all the words
Impossible to answer since there is no enough information

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