With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Darius Rucker founded Hootie & the Blowfish along with Mark Bryan, Jim Sonefeld and Dean Felber.
text_B: CYP3A7 is an enzyme belonging to the cytochrome P450 family .. cytochrome P450. cytochrome P450. It is 503 amino acids in size and shares 87 % of its sequence with CYP3A4 .. CYP3A4. CYP3A4. It carries out a similar role in fetuses that CYP3A4 serves in adults .. CYP3A4. CYP3A4. The gene location is 7q22 .1 .. gene location. Locus ( genetics ). The CYP3A group of enzymes are the most abundantly expressed members of the cytochrome P450 family in liver .. cytochrome P450. cytochrome P450. expressed. Gene expression. They are responsible for the metabolism of more than 50 % of all clinical pharmaceuticals .. metabolism. metabolism
not_related.