Question: when does the 14th season of grey's anatomy come out
[{'answer': 'September 28 , 2017', 'provenance': [{'wikipedia_id': '54041689', 'title': "Grey's Anatomy (season 14)", 'start_paragraph_id': 71, 'start_character': 85, 'end_paragraph_id': 71, 'end_character': 104, 'bleu_score': 1.0, 'section': 'Section::::Production.\n'}]}, {'provenance': [{'wikipedia_id': '54041689', 'title': "Grey's Anatomy (season 14)", 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 483, 'bleu_score': 0.883139511608066, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 4144959078926308947}, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '23492454', 'title': "Grey's Anatomy (season 6)", 'section': 'Section::::Abstract.', 'start_paragraph_id': 1, 'end_paragraph_id': 1, 'meta': {'evidence_span': ['The sixth season of the American television medical drama "Grey\'s Anatomy", commenced airing on the American Broadcasting Company (ABC) in the United States on September 24, 2009, and concluded on May 20, 2010. The season was produced by ABC Studios, in association with Shondaland Production Company and The Mark Gordon Company; the showrunner being Shonda Rhimes and head writer Krista Vernoff. Actors Ellen Pompeo, Sandra Oh, Katherine Heigl, and Justin Chambers reprised their roles as surgical residents Meredith Grey, Cristina Yang, Izzie Stevens, and Alex Karev, respectively. Heigl was released from her contract in the middle of the season, while T.R. Knight did not appear as George O\'Malley, because Knight was released from his contract at the conclusion of season five. Main cast members Patrick Dempsey, Chandra Wilson, James Pickens, Jr., Sara Ramirez, Eric Dane, Chyler Leigh, and Kevin McKidd also returned, while previous recurring star Jessica Capshaw was promoted to a series regular, and Kim Raver was given star billing after the commencement of the season.', 'The sixth season of the American television medical drama "Grey\'s Anatomy", commenced airing on the American Broadcasting Company (ABC) in the United States on September 24, 2009, and concluded on May 20, 2010. The season was produced by ABC Studios, in association with Shondaland']}}]}, {'provenance': [{'wikipedia_id': '54041689', 'title': "Grey's Anatomy (season 14)", 'section': 'Section::::Cast.:Casting.\n', 'start_paragraph_id': 67, 'end_paragraph_id': 67, 'meta': {'evidence_span': ['On October 9, 2017, the new group of interns to join the cast in the fourth episode "Ain\'t That a Kick in the Head" was announced to include Jeanine Mason ("So You Think You Can Dance") as Sam, Alex Blue Davis as Casey, Rushi Kota as Vik, Jaicy Elliot as Taryn, Sophia Ali as Dahlia, and Jake Borelli as Levi. On October 26, 2017, it was announced that Martin Henderson\'s appearance in the fifth episode titled "Danger Zone" would be his last. On January 31, 2018, it was announced that Candis Cayne would be joining the show as Dr. Michelle Velez for a multi-episode arc revolving around a transgender character receiving a ground breaking surgery. On March 8, 2018, it was announced that both Jessica', 'On October 9, 2017, the new group of interns to join the cast in the fourth episode "Ain\'t That a Kick in the Head" was announced to include Jeanine Mason ("So You Think You Can Dance") as Sam, Alex Blue Davis as Casey, Rushi Kota as Vik, Jaicy Elliot as Taryn, Sophia Ali as Dahlia, and Jake Borelli']}}]}, {'provenance': [{'wikipedia_id': '54041689', 'title': "Grey's Anatomy (season 14)", 'section': 'Section::::Production.\n', 'start_paragraph_id': 71, 'end_paragraph_id': 71, 'meta': {'evidence_span': ['"Grey\'s Anatomy" was renewed for a 14th season on February 10, 2017. It premiered on September 28, 2017, with a two-hour premiere.', '"Grey\'s Anatomy" was renewed for a 14th season on February 10, 2017. It premiered on September 28, 2017, with a two-hour premiere. Ellen Pompeo announced that she would be directing several episodes in the 14th season. On April 28, 2017, veteran writer Krista Vernoff announced that she would return to the show as a writer after leaving the show after the seventh season. On January 11, 2018, ABC released a six-episode web series following the new surgical interns at Grey Sloan Memorial Hospital. The web series was written by Barbara Kaye Friend and directed by series regular Sarah Drew.']}}]}]