With no explanation, label text_A→text_B with either "entailment", "neutral" or "contradiction".
text_A: Surveys during the mid-1950s by British, Argentine and United States expeditions indicate that a group of four or five nunataks exist in the area.
text_B: Surveys during the mid-1950s by British, Argentine and United States expeditions indicate that a group of four nunataks exist in the area.
entailment.