With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Neal Schon is an American rock songwriter.
text_B: The F.I.M. motorcycle Grand Prix was a one-off motorcycling event that was part of the 1993 Grand Prix motorcycle racing season , held to replace the South African Grand Prix .. Grand Prix motorcycle racing. Grand Prix motorcycle racing. 1993 Grand Prix motorcycle racing season. 1993 Grand Prix motorcycle racing season. South African Grand Prix. South African motorcycle Grand Prix
not_related.