With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Theodore Roosevelt considered running a marathon.
text_B: Geoff Chunn is a New Zealand musician , best known as an early member of Split Enz .. New Zealand. New Zealand. Split Enz. Split Enz. Chunn was a teenage friend of Tim Finn .. Tim Finn. Tim Finn. Together the two of them and Chunn 's elder brother , Mike Chunn , founded the band Stillwater while at high school in the late 1960s .. Mike Chunn. Mike Chunn. When Stillwater split up in 1971 , Chunn joined acoustic group Rosewood .. In late 1972 , Mike Chunn was approached by Finn to join his new band , Split Ends , which he duly did .. Mike Chunn. Mike Chunn. The following year , Geoff joined the band as drummer , staying with the band -LRB- called Split Enz from early 1974 -RRB- until June 1974 .. Split Enz. Split Enz. Following his departure from Split Enz , Chunn briefly drummed for Dragon , before forming Citizen Band in 1977 with his brother Mike .. Split Enz. Split Enz. Dragon. Dragon ( band ). Citizen Band. Citizen Band ( music band ). Citizen Band saw Geoff Chunn move away from drums to become the group 's principal singer , guitarist and songwriter .. Citizen Band. Citizen Band ( music band )
not_related.