Question: who won the 2018 women's royal rumble match
[{'answer': 'Asuka', 'provenance': [{'wikipedia_id': '52993846', 'title': 'Royal Rumble (2018)', 'start_paragraph_id': 2, 'start_character': 94, 'end_paragraph_id': 2, 'end_character': 99, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '52993846', 'title': 'Royal Rumble (2018)', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 758, 'bleu_score': 0.9480485738483061, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 8901032996564038129}, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '580533', 'title': 'Women in WWE', 'section': "Section::::Women in WWE.:Women's Evolution (2016–present).\n", 'start_paragraph_id': 62, 'end_paragraph_id': 62, 'meta': {'evidence_span': ['On the July 23 episode of "Raw", Stephanie McMahon announced that on October 28 the first ever all women\'s pay-per-view event in history, WWE Evolution, will take place. In August, at SummerSlam, Ronda Rousey defeated Alexa Bliss to win the Raw Women\'s Championship, becoming the first woman to win a women\'s championship in both UFC and WWE in the process. At Evolution, all of the active women\'s championships in WWE were defended and the finals of the 2018 Mae Young Classic tournament also took place at the event. Trish and Lita teamed up for the first time since 2003 to take on Mickie James and Alicia Fox. Nikki Bella vs. Ronda Rousey served as the main event. The match, that stood out as match of the night and was praised by many critics as the best match in WWE for this year, was between Becky Lynch and Charlotte Flair who made history by competing in the first ever Last Woman Standing match, which Lynch won. On December 16, at the payperview, the first ever women\'s triple threat Tables, Ladders, and Chairs match took place, where Asuka defeated Becky Lynch and Charlotte Flair to capture the Smackdown Women\'s Championship, in what was also the first time that title was featured in the main event match of payperview. It was also the first women\'s championship match to main event a dual branded event. On January 27, 2019, at the Royal Rumble', "On December 16, at the payperview, the first ever women's triple threat Tables, Ladders, and Chairs match took place, where Asuka defeated Becky Lynch and Charlotte Flair to capture the Smackdown Women's Championship, in what was also the first time that title was featured in the main event match of payperview. It was also the first women's championship match to main event a dual branded event. On January 27, 2019, at the Royal Rumble"]}}]}, {'provenance': [{'wikipedia_id': '31163221', 'title': 'Paige (wrestler)', 'section': 'Section::::Abstract.', 'start_paragraph_id': 1, 'end_paragraph_id': 1, 'meta': {'evidence_span': ["Saraya-Jade Bevis (born 17 August 1992) is an English professional wrestling personality, actress, and retired professional wrestler. She is signed to WWE under the ring name Paige, where she is the manager of the tag team of Asuka and Kairi Sane on the SmackDown brand. Bevis is a two-time Divas Champion and was the inaugural NXT Women's Champion in WWE's developmental branch NXT, holding both championships concurrently at one time.", "Saraya-Jade Bevis (born 17 August 1992) is an English professional wrestling personality, actress, and retired professional wrestler. She is signed to WWE under the ring name Paige, where she is the manager of the tag team of Asuka and Kairi Sane on the SmackDown brand. Bevis is a two-time Divas Champion and was the inaugural NXT Women's Champion in WWE's developmental branch NXT, holding both championships concurrently at one time.\rhighlight sentence(s) containing evidence, not only the answer"]}}]}, {'provenance': [{'wikipedia_id': '52993846', 'title': 'Royal Rumble (2018)', 'section': 'Section::::Abstract.', 'start_paragraph_id': 2, 'end_paragraph_id': 2, 'meta': {'evidence_span': ['Nine matches were contested at the event, including three on the pre-show. In the main event, Asuka won the first-ever women\'s Royal Rumble match, which was also the second women\'s match to main event a WWE pay-per-view, and the first to main event one of WWE\'s "Big Four" pay-per-views. The men\'s Royal Rumble match was won by Shinsuke Nakamura. Other prominent matches included Brock Lesnar retaining the Universal Championship in a triple threat match against Braun Strowman and Kane, and AJ Styles retained the WWE Championship against Kevin Owens and Sami Zayn in a handicap match. The event was also notable for the surprise debut of former UFC star Ronda Rousey following the women\'s match, officially confirming that she had signed full-time with WWE.', 'Nine matches were contested at the event, including three on the pre-show. In the main event, Asuka won the first-ever women\'s Royal Rumble match, which was also the second women\'s match to main event a WWE pay-per-view, and the first to main event one of WWE\'s "Big Four" pay-per-views.']}}]}, {'provenance': [{'wikipedia_id': '580533', 'title': 'Women in WWE', 'section': "Section::::Women in WWE.:Women's Evolution (2016–present).\n", 'start_paragraph_id': 61, 'end_paragraph_id': 61, 'meta': {'evidence_span': ['The match lasted 58:57, becoming the longest women\'s match, and Asuka was victorious after she eliminated Nikki Bella in the finals. Former UFC Women\'s Bantamweight Champion Ronda Rousey made an appearance in the ring and subsequently revealed that she had been signed as a WWE wrestler. The following month, the first ever women\'s Elimination Chamber match took place at the namesake payperview, where Alexa Bliss successfully retained her Raw Women\'s Championship against Sasha Banks, Bayley, Sonya Deville, Mandy Rose, and Mickie James. On April 9, at the postWrestlemania episode of "Raw", Paige announced her inring retirement due to her back injury.', 'Asuka was victorious after she eliminated Nikki Bella in the finals']}}]}]