With no explanation, label text_A→text_B with either "entailment", "neutral" or "contradiction".
text_A: Standard magnetic resonance images can show the outline of some nerves in portions of their courses but do not show the intrinsic signal from nerve water.
text_B: Standard magnetic resonance images can show the outline of every nerves in portions of their courses but do not show the intrinsic signal from nerve water.
contradiction.