[Martha] was talking with her husband [Irvin] and his brother [Theodore]. Apparently, [Theodore]'s mother [Lena] was not feeling well.
('Martha', 'Lena')
[Martha] was talking with her husband [Irvin] and his brother [Theodore]. Apparently, [Theodore]'s mother [Lena] was not feeling well.
[{('Martha', 'mother-in-law', 'Lena'): [('Martha', 'husband', 'Irvin'), ('Irvin', 'mother', 'Lena')]}, {('Irvin', 'mother', 'Lena'): [('Irvin', 'brother', 'Theodore'), ('Theodore', 'mother', 'Lena')]}]
['husband', 'brother', 'mother']