[Lois] and her mother [Mary] went to volunteer at the homeless shelter last weekend. [Roy] was going to meet his wife, [Mary], for lunch.
('Roy', 'Lois')
[Roy] was going to meet his wife, [Mary], for lunch. [Lois] and her mother [Mary] went to volunteer at the homeless shelter last weekend.
[{('Roy', 'daughter', 'Lois'): [('Roy', 'wife', 'Mary'), ('Mary', 'daughter', 'Lois')]}]