With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Paramore is also the name of a duo.
text_B: A pharyngeal groove -LRB- or branchial groove , or pharyngeal cleft -RRB- is made up of ectoderm unlike its counterpart the pharyngeal pouch on the endodermal side .. pharyngeal pouch. pharyngeal pouch ( embryology ). The first pharyngeal groove produces the external auditory meatus -LRB- ear canal -RRB- .. external auditory meatus. external auditory meatus. The rest -LRB- 2 , 3 , and 4 -RRB- are overlapped by the growing 2nd pharyngeal arch , and form the floor of the depression termed the cervical sinus , which opens ventrally , and is finally obliterated .. pharyngeal arch. pharyngeal arch. cervical sinus. cervical sinus
not_related.