story: [Sandra] and her daughter [Lisa] went to church. They were both very religious. [Mark] went to the wedding ceremony for his brother [Alfred]. [Alfred] 'daughter, [Ellen], just made it into grad school. [Sandra] visited her son [Mark] at college.
query: ('Sandra', 'Ellen')
clean_story: [Sandra] visited her son [Mark] at college. [Mark] went to the wedding ceremony for his brother [Alfred]. [Alfred] 'daughter, [Ellen], just made it into grad school.
proof_state: [{('Sandra', 'granddaughter', 'Ellen'): [('Sandra', 'son', 'Alfred'), ('Alfred', 'daughter', 'Ellen')]}, {('Sandra', 'son', 'Alfred'): [('Sandra', 'son', 'Mark'), ('Mark', 'brother', 'Alfred')]}]