With no explanation, label text_A→text_B with either "not-entailed" or "entailed".
text_A: An art teacher in the mid-cities area of Dallas / Ft. Worth metro got fired because she took an art class on an approved field trip with parental permission for each student and some hysterical parent discovered that they saw `` nudes `` in the museum .
text_B: The approving happened
entailed.