With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Julius Caesar held a position from 26 January to 15 March.
text_B: San Columbano is the Italian form of Saint Columbanus .. Saint Columbanus. Saint Columbanus. It is also the name of  :. the Italian town formerly called Mombrione. Mombrione. Mombrione. San Columbano Abbey , a territorial abbey in Italy. San Columbano Abbey. San Columbano Abbey
not_related.