With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Streptococcus belongs to a phylum which has a cell wall structure.
text_B: This is a list of episodes for the fourth season -LRB- 1953 -- 54 -RRB- of the television version of The Jack Benny Program .. The Jack Benny Program. The Jack Benny Program. This season is mostly known for Humphrey Bogart and Marilyn Monroe being on the show -LRB- separately -RRB- .. This year had major movie stars of the time , more likely to attract more viewers .. The show 's rankings had gone down 33 % from last year , but the show was still popular , and the next season would get more views .. This season the program was the 16th highest-ranking show .
not_related.