With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Diamonds was recorded by Rihanna for her fifth album.
text_B: Gressingham is a civil parish in Lancaster , Lancashire , England .. Gressingham. Gressingham. civil parish. Civil parishes in England. Lancaster. City of Lancaster. Lancashire. Lancashire. It contains 14 listed buildings that are recorded in the National Heritage List for England .. listed buildings. Listed building#England and Wales. National Heritage List for England. National Heritage List for England. Of these , one is listed at Grade I , the highest of the three grades , two are at Grade II * , the middle grade , and the others are at Grade II , the lowest grade .. Apart from the village of Gressingham and the settlement of Eskrigge , the parish is rural .. Gressingham. Gressingham. Almost all the listed buildings are houses and associated structures , farmhouses , and farm buildings .. listed buildings. Listed building#England and Wales. Also listed are a church and a bridge crossing the River Lune on the boundary of the parish .. River Lune. River Lune
not_related.