[Clara] was upset because her husband, [Keith], did n't buy her flowers for their wedding anniversary. [Keith] went to visit his sister [Cheryl] to the hospital last week. [Cheryl] took her mother, [Michelle], out for lunch.
('Clara', 'Michelle')
[Clara] was upset because her husband, [Keith], did n't buy her flowers for their wedding anniversary. [Keith] went to visit his sister [Cheryl] to the hospital last week. [Cheryl] took her mother, [Michelle], out for lunch.
[{('Clara', 'mother-in-law', 'Michelle'): [('Clara', 'husband', 'Keith'), ('Keith', 'mother', 'Michelle')]}, {('Keith', 'mother', 'Michelle'): [('Keith', 'sister', 'Cheryl'), ('Cheryl', 'mother', 'Michelle')]}]