story: [Carol] took her younger sister [Lisa] to the carnival last weekend. [Anna] was pleased to receive a birthday card from her grandmother, [Sandra]. [Carmen]'s sister, [Anna], recently started acting. [Carol] is married to Thomas and when she was 24, the couple welcomed [Anna] into the world.
query: ('Lisa', 'Sandra')
clean_story: [Carol] took her younger sister [Lisa] to the carnival last weekend. [Carol] is married to Thomas and when she was 24, the couple welcomed [Anna] into the world. [Anna] was pleased to receive a birthday card from her grandmother, [Sandra].
proof_state: [{('Lisa', 'mother', 'Sandra'): [('Lisa', 'sister', 'Carol'), ('Carol', 'mother', 'Sandra')]}, {('Carol', 'mother', 'Sandra'): [('Carol', 'daughter', 'Anna'), ('Anna', 'grandmother', 'Sandra')]}]