With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Judd Apatow has produced unsuccessful films.
text_B: Low-grade fibromyxoid sarcoma -LRB- LGFMS -RRB- is a rare type of low grade sarcoma first described by Harry Evans in 1987 .. sarcoma. sarcoma. It is characterized by a long and indolent clinical course and the possibility of local recurrence or distant metastases in a subset of patients .. Unlike many other types of cancer , low grade fibromyxoid sarcoma can metastasize after many years , sometimes decades after the initial presentation of the tumor .. sarcoma. sarcoma
not_related.