With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: There was an animator named William Hanna.
text_B: The WAGR Ec class was a class of 4-6-2 heavy passenger and goods Vauclain compound locomotives operated by the Western Australian Government Railways -LRB- WAGR -RRB- between 1901 and 1958 .. 4-6-2. 4-6-2. Western Australian Government Railways. Western Australian Government Railways. Vauclain compound. Vauclain compound
not_related.