Question: who played little ricky on i love lucy show
[{'answer': 'Keith Thibodeaux', 'provenance': [{'wikipedia_id': '173089', 'title': 'Richard Keith (actor)', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 16, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '173089', 'title': 'Richard Keith (actor)', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 333, 'bleu_score': 0.541001007165479, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 18140173377921160397}, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '173089', 'title': 'Richard Keith (actor)', 'section': 'Section::::Abstract.', 'start_paragraph_id': 1, 'end_paragraph_id': 1, 'meta': {'evidence_span': ['Keith Thibodeaux (born December 1, 1950) is a former American child actor and musician, best known for playing Little Ricky on the television sitcoms "I Love Lucy" and "The Lucy-Desi Comedy Hour". His last name, which was Cajun French, was changed by producer Desi Arnaz to "Keith" because "Thibodeaux" was too difficult to pronounce.', 'Keith Thibodeaux (born December 1, 1950) is a former American child actor and musician, best known for playing Little Ricky', 'Keith Thibodeaux (born December 1, 1950) is a former American child actor and musician,']}}]}, {'provenance': [{'wikipedia_id': '144832', 'title': 'I Love Lucy', 'section': 'Section::::Background and development.:Pregnancy and Little Ricky.\n', 'start_paragraph_id': 75, 'end_paragraph_id': 75, 'meta': {'evidence_span': ['Unlike some programs that advance the age of a newborn over a short period, "I Love Lucy" at first allowed the Little Ricky character to grow up in real time. America saw Little Ricky as an infant in the 195253 season and a toddler from 1953 to 1956. However, for the 195657 season, Little Ricky suddenly aged by two years, becoming a young school-age boy from 1956 to 1960. Five actors played the role, two sets of twins and later Keith Thibodeaux, whose stage name when playing Ricky Ricardo Jr. was Richard Keith.', 'later Keith Thibodeaux, whose stage name when playing Ricky Ricardo Jr. was Richard Keith', 'two sets of twins and later Keith Thibodeaux, whose stage name when playing Ricky Ricardo Jr. was Richard Keith.']}}]}, {'provenance': [{'wikipedia_id': '144832', 'title': 'I Love Lucy', 'section': 'Section::::After "Lucy".:Hour-long format.\n', 'start_paragraph_id': 111, 'end_paragraph_id': 111, 'meta': {'evidence_span': ['After the conclusion of the sixth season of "I Love Lucy", the Arnazes decided to cut down on the number of episodes that were filmed. Instead, they extended "I Love Lucy" to 60 minutes, with a guest star each episode. They renamed the show "The Lucille Ball-Desi Arnaz Show", also known as "The Lucy-Desi Comedy Hour". Thirteen hour-long episodes aired from 1957 to 1960. The main cast, Lucille Ball, Desi Arnaz, Vivian Vance, William Frawley and Little Ricky/Richard Keith (birth name Keith Thibodeaux) were all in the show.', 'Little Ricky/Richard Keith (birth name Keith Thibodeaux)', 'Little Ricky/Richard Keith (birth name Keith Thibodeaux) were all in the show.']}}]}, {'provenance': [{'wikipedia_id': '33572368', 'title': 'Ricky Ricardo Jr.', 'section': 'Section::::Abstract.', 'start_paragraph_id': 1, 'end_paragraph_id': 1, 'meta': {'evidence_span': ['Enrique Alberto Ricardo IV, "Little Ricky," is a fictional character from the American television series "I Love Lucy" (195157, with Ricky Jr. becoming a part of the show as of his birth in 1953) and "The Lucy-Desi Comedy Hour" (195760). Little Ricky was played by a number of actors, including James John Ganzer, twins Richard and Ronald Lee Simmons, twins Michael and Joseph Mayer and, most notably, Keith Thibodeaux, billed as Little Ricky.', 'most notably, Keith Thibodeaux, billed as Little Ricky.']}}]}]