With no explanation, label text_A→text_B with either "entailment", "neutral" or "contradiction".
text_A: A scrum machine, or scrummaging machine, is a padded, weighty device against which a pack of rugby football forwards can practice scrummaging and rucking.
text_B: A scrum machine,, is a padded, weighty device against which a pack of rugby football forwards can practice scrummaging and rucking.
entailment.