With no explanation, label text_A→text_B with either "not-entailed" or "entailed".
text_A: As a child in the 50 's I had a lot of glandular problems and they treated it with radiation therapy ( primitive at best ! ) and stopped when a lesion on my neck started enlarging -- they said it was not CA but stopped the treatments ... .
text_B: The having did not happen
not-entailed.