With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Michelle Williams (singer) starred in the musical productions "Happy Feet (2007)."
text_B: Liesel Bach -LRB- 14 June 1905 -- 22 January 1992 -RRB- was a German aerobatic pilot and flight instructor .. She was the first woman to fly over Mount Everest .. Mount Everest. Mount Everest
not_related.