With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Sierra Leone gained sovereignty from Britain in 1961.
text_B: Salvatore `` Toto '' Cutugno -LRB- -LSB- ˈtɔːto kuˈtuɲɲo -RSB- ; born 7 July 1943 -RRB- is an Italian pop singer-songwriter and musician .. Italian. Italian people. singer-songwriter. singer-songwriter. Cutugno may be best known for his worldwide hit song , `` L'Italiano '' , which was on his hit CD , I Grandi Successi .. L'Italiano. L'Italiano. He won the Eurovision Song Contest 1990 , as with a previous Eurovision winner Johnny Logan he was author of both lyrics and music .. Eurovision Song Contest 1990. Eurovision Song Contest 1990. Johnny Logan. Johnny Logan ( singer )
not_related.