With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Jon Pertwee was in a series based on the Worzel Gummidge books and he acted.
text_B: John Devon Roland Pertwee -LRB- 7 July 1919 -- 20 May 1996 -RRB- , known professionally as Jon Pertwee , was an English actor , entertainer and cabaret performer .. Roland Pertwee. Roland Pertwee. Pertwee is most known for starring as the Third Doctor in the science-fiction series Doctor Who between 1970 and 1974 .. Doctor Who. Doctor Who. Third Doctor. Third Doctor. Pertwee also spent 18 years -LRB- 1959 -- 1977 -RRB- playing Chief petty officer Pertwee in The Navy Lark on BBC Radio .. The Navy Lark. The Navy Lark. Chief petty officer. Chief petty officer. BBC Radio. BBC Radio. He later played the title character in the series Worzel Gummidge from 1979 to 1981 , and again from 1987 to 1989 .. Worzel Gummidge. Worzel Gummidge ( TV series ). As an actor , Pertwee appeared in many comedy roles and was once described as having `` rubbery features and ability to affect silly voices '' .. Earlier in his career , Pertwee had worked as a vaudeville comedian , performed at the Glasgow Empire Theatre and shared a bill with Max Wall and Jimmy James .. Glasgow. Glasgow. vaudeville. vaudeville. Glasgow Empire Theatre. Glasgow Empire Theatre. Max Wall. Max Wall. Jimmy James. Jimmy James ( comedian ). Towards the end of his life , he performed to audiences in a one-man show called Who Is Jon Pertwee ?
related.