With no explanation, label text_A→text_B with either "False" or "True".
text_A: Adam can't leave work here until Bob arrives to replace him. If Bob had  left home for work on time, he would be here by this time. The he is more likely to refer to Bob than Adam because Adam is waiting to be replaced: therefore Bob was the one not leaving for work on time
text_B: In "Adam can't leave work here until Bob arrives to replace him. If Bob had  left home for work on time, he would be here by this time. ", The he is more likely to refer to Bob than Adam because Adam is waiting to be replaced: therefore Bob was the one not leaving for work on time
True.