With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Zeus is the son of Titans.
text_B: Architecturally significant requirements -LRB- ASRs -RRB- are those requirements that have a measurable effect on a software system 's architecture .. architecture. Software architecture. requirements. Software requirement. They are a subset of requirements , the subset that affects the architecture of a system in measurably identifiable ways .. architecture. Software architecture. requirements. Software requirement
not_related.