With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Ratatouille was produced by Pixar Animation Studios.
text_B: The Harvard -- MIT Mathematics Tournament -LRB- HMMT -RRB- is an annual high school math competition started in 1998 .. MIT. MIT. The location of the tournament , in Cambridge , Massachusetts , alternates between Harvard University -LRB- even years -RRB- and MIT -LRB- odd years -RRB- .. Harvard University. Harvard University. MIT. MIT. The contest is written and staffed entirely by Harvard and MIT students , and is considered to be one of the most prestigious high school math competitions in the world .. MIT. MIT
not_related.