Question: who played forrest gumps mother in the 1994 film
[{'answer': 'Sally Field', 'provenance': [{'wikipedia_id': '41528', 'title': 'Forrest Gump', 'start_paragraph_id': 1, 'start_character': 224, 'end_paragraph_id': 1, 'end_character': 235, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '41528', 'title': 'Forrest Gump', 'section': 'Section::::Abstract.', 'start_paragraph_id': 1, 'end_paragraph_id': 1, 'meta': {'evidence_span': ['Sally Field', 'Forrest Gump is a 1994 American comedy-drama film directed by Robert Zemeckis and written by Eric Roth. It is based on the 1986 novel by Winston Groom, and stars Tom Hanks, Robin Wright, Gary Sinise, Mykelti Williamson, and Sally Field. The story depicts several decades in the life of Forrest Gump (Hanks), a slow-witted but kind-hearted man from Alabama who witnesses and unwittingly influences several defining historical events in the 20th century in the United States. The film differs substantially from the novel.']}}]}, {'provenance': [{'wikipedia_id': '240361', 'title': 'Sally Field', 'section': 'Section::::Career.:1990–present.\n', 'start_paragraph_id': 20, 'end_paragraph_id': 20, 'meta': {'evidence_span': ['Field had supporting roles in a number of other movies, including "Mrs. Doubtfire" (1993) in which she played the wife of Robin Williams\'s character and the love interest of Pierce Brosnan\'s character. She then played Tom Hanks\'s mother in "Forrest Gump" (1994), even though she was only 10 years older than Hanks, with whom she had co-starred six years earlier in "Punchline". Field\'s other 1990s films included "Not Without My Daughter", a controversial thriller based on the real-life experience of Betty Mahmoody\'s escape', 'Field had supporting roles in a number of other movies, including "Mrs. Doubtfire" (1993) in which she played the wife of Robin Williams\'s character and the love interest of Pierce Brosnan\'s character. She then played Tom Hanks\'s mother in "Forrest Gump" (1994), even though she was only 10 years older than Hanks, with whom she had co-starred six years earlier in "Punchline".']}}]}]