With no explanation, label text_A→text_B with either "entailment", "neutral" or "contradiction".
text_A: In cardiac physiology, the Levine grading scale is a numeric scoring system to characterize the intensity or the loudness of a heart murmur.
text_B: In cardiac physiology, the Levine grading scale is a numeric scoring system to characterize the loudness of a heart murmur.
entailment.