With no explanation, label text_A→text_B with either "not-entailed" or "entailed".
text_A: The best option , now , under the present difficult circumstances is for Colombo to do its own dirty work , although New Delhi can always be counted on to render good neighborly help because of the shared belief that religion , ethnicity and language can not be the basis for secession .
text_B: The doing did not happen
entailed.