With no explanation, label text_A→text_B with either "entailment", "neutral" or "contradiction".
text_A: Thus each extended-sidereal day is shorter than a sidereal day (23 hr 56 min) by about four minutes or 23 hr 52 min.
text_B: Thus each extended - sidereal day is shorter than a sidereal day 23 hr 56 min by about four minutes.
entailment.