With no explanation, label text_A→text_B with either "entailment", "neutral" or "contradiction".
text_A: Syringomyelia (SM) is a disease of the spinal cord typified by fluid filled cavities, or syrinxes, within the spinal cord substance.
text_B: Syringomyelia SM is a disease of the spinal cord typified by syrinxes, within the spinal cord substance.
entailment.