With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Sean Spicer claimed that the press had under-estimated the number of spectators on purpose.
text_B: Lindy is an opera in two acts by Australian composer Moya Henderson to an English libretto by Judith Rodriguez .. opera. opera. composer. Musical composition. Moya Henderson. Moya Henderson. English. English language. libretto. libretto. Judith Rodriguez. Judith Rodriguez. Lindy. Lindy Chamberlain. It is based on the death of Lindy and Michael Chamberlain 's baby Azaria Chamberlain in the Australian outback at Uluru in 1980 .. death. Death of Azaria Chamberlain. Lindy. Lindy Chamberlain. Michael Chamberlain. Michael Chamberlain. Azaria Chamberlain. Azaria Chamberlain. outback. outback. Uluru. Uluru. The opera lasts for about 1 hour and 35 minutes .. opera. opera. It premiered on 25 October 2002 at the Sydney Opera House .. 2002 in music. Sydney Opera House. Sydney Opera House
not_related.