story: [Errol] is Grandson of [Sandra] and brother of [Jennifer] [Jennifer]'s mom, [Rose], has recently taken art classes. [James] is [Jennifer]'s father.
query: ('James', 'Sandra')
clean_story: [James] is [Jennifer]'s father. [Errol] is Grandson of [Sandra] and brother of [Jennifer]
proof_state: [{('James', 'mother', 'Sandra'): [('James', 'daughter', 'Jennifer'), ('Jennifer', 'grandmother', 'Sandra')]}, {('Jennifer', 'grandmother', 'Sandra'): [('Jennifer', 'brother', 'Errol'), ('Errol', 'grandmother', 'Sandra')]}]