With no explanation, label text_A→text_B with either "not-entailed" or "entailed".
text_A: Four critically important access waterways are the Suez Canal ( Egypt ) , Bab el Mandeb ( Djibouti-Yemen ) , Strait of Hormuz ( Iran-Oman ) , and Strait of Malacca ( Indonesia-Malaysia ) .
text_B: Bab el Mandeb is an artefact
not-entailed.