With no explanation, label text_A→text_B with either "not-entailed" or "entailed".
text_A: Injured tube passengers are escorted away from Edgware Road Tube Station in London following explosion , Thursday A group calling itself the `` Abu Hafs al-Masri Brigades `` posted a statement on an Arabic language Islamist website Saturday , congratulating itself for the bombings on three subway trains and one bus in the central part of the British capital .
text_B: Saturday is an artefact
not-entailed.