With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Ron Cobb is the only a sketch artist.
text_B: Valentin Gerhard Braun-Dusemond , born Gerhard Braun , -LRB- 1919 -- 1998 -RRB- , was a German painter and art dealer .. He lived and worked in several different countries , including East Africa and Malta , and his work embraced both Abstract Expressionist and Impressionist styles .. East Africa. East Africa. Malta. Malta. Abstract Expressionist. Abstract Expressionist. Impressionist. Impressionist
not_related.