With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Buddy Holly had a contract.
text_B: Stefan Ciubotarasu -LRB- -LSB- ʃteˈfan ˌtʃʲubotəˈraʃu -RSB- ; 21 March 1910 - 27 August 1970 -RRB- was a Romanian actor .. He appeared in more than thirty films from 1954 to 1970 .
not_related.