story: [Valerie] invited her daughter, [Annie], and her son, [Clarence], out to tea. [Clarence] called his sister, [Elizabeth], to tell her about it.
query: ('Elizabeth', 'Annie')
clean_story: [Valerie] invited her daughter, [Annie], and her son, [Clarence], out to tea. [Clarence] called his sister, [Elizabeth], to tell her about it.
proof_state: [{('Elizabeth', 'sister', 'Annie'): [('Elizabeth', 'mother', 'Valerie'), ('Valerie', 'daughter', 'Annie')]}, {('Elizabeth', 'mother', 'Valerie'): [('Elizabeth', 'brother', 'Clarence'), ('Clarence', 'mother', 'Valerie')]}]