With no explanation, label text_A→text_B with either "entailment", "neutral" or "contradiction".
text_A: At various points some or all of these eleven unsolved murders of women have been ascribed to the notorious unidentified serial killer known as Jack the Ripper.
text_B: At various points all of these eleven unsolved murders of women have been ascribed to the notorious unidentified serial killer known as Jack the Ripper.
entailment.