With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Bryan Cranston was on Malcolm in the Middle, an American sitcom.
text_B: In the North American Numbering Plan , telephone area code 337 covers southwestern Louisiana .. North American Numbering Plan. North American Numbering Plan. telephone. telephone. area code. area code. Louisiana. Louisiana. It was created in 1999 .. Until 1999 / 2000 , this area was the southern half of area code 318 , which covered the western half of Louisiana .. area code. area code. Louisiana. Louisiana. area code 318. area code 318
not_related.