With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Gillian Jacobs appeared in the battle of Hot Tub Time Machine 2.
text_B: Gemstones is the third solo album by Adam Green , released in 2005 .. Adam Green. Adam Green ( musician ). The album is characterised by the heavy presence of Wurlitzer piano , whereas its predecessor relied on a string section in its instrumentation .. Wurlitzer. Wurlitzer electric piano. string section. string section
not_related.