Question: when does the regular season start in mlb
[{'answer': 'March 29 , 2018', 'provenance': [{'wikipedia_id': '54755172', 'title': '2018 Major League Baseball season', 'start_paragraph_id': 1, 'start_character': 47, 'end_paragraph_id': 1, 'end_character': 62, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '54755172', 'title': '2018 Major League Baseball season', 'section': 'Section::::Abstract.', 'start_paragraph_id': 1, 'end_paragraph_id': 1, 'meta': {'evidence_span': ['The 2018 Major League Baseball season began on March 29, 2018. The regular season ended on October 1, extended a day for tiebreaker games to decide the winners of the National League Central and National League West divisions. The postseason began on October 2. The World Series began on October 23, and ended on October 28 with the Boston Red Sox defeating the Los Angeles Dodgers in five games to win their ninth World Series championship.', 'The 2018 Major League Baseball season began on March 29, 2018.', 'March 29, 2018.']}}]}]