[James] and [Frances] had an upcoming anniversary. [David] and [Gloria] arranged for a surprise anniversary gift for [James] and [Frances].
('Frances', 'Gloria')
[James] and [Frances] had an upcoming anniversary. [David] and [Gloria] arranged for a surprise anniversary gift for [James] and [Frances].
[{('Frances', 'granddaughter', 'Gloria'): [('Frances', 'daughter', 'David'), ('David', 'daughter', 'Gloria')]}, {('Frances', 'daughter', 'David'): [('Frances', 'husband', 'James'), ('James', 'daughter', 'David')]}]
['husband', 'daughter', 'daughter']