When the winners votes were 50.54% who were the members of parliment?
{'header': ['Year', 'Lok Sabha', 'Members of Parliament', 'Party Won', 'Winners % votes', 'Trailing Party', 'Trailing Party % votes'], 'page_title': 'Pilibhit (Lok Sabha constituency)', 'section_title': 'Members of Parliament', 'caption': 'Members of Parliament', 'rows': [['1951', '1st Lok Sabha', 'Mukund Lal Agrawal', 'Indian National Congress', '43.11%', 'Socialist Party', '22.58%'], ['1957', '2nd Lok Sabha', 'Mohan Swarup', 'Praja Socialist Party', '50.54%', 'Indian National Congress', '34.86%'], ['1962', '3rd Lok Sabha', 'Mohan Swarup', 'Praja Socialist Party', '29.62%', 'Indian National Congress', '27.42%'], ['1967', '4th Lok Sabha', 'Mohan Swarup', 'Praja Socialist Party', '28.24%', 'Indian National Congress', '24.26%'], ['1971', '5th Lok Sabha', 'Mohan Swarup', 'Indian National Congress', '38.96%', 'Indian National Organization', '24.74%'], ['1977', '6th Lok Sabha', 'Md Shamsul Hasan Khan', 'Bharatiya Lok Dal', '71.32%', 'Indian National Congress', '19.73%'], ['1980', '7th Lok Sabha', 'Harish Kumar Gangawar', 'Indian National Congress', '40.42%', 'Janata Party', '25.34%'], ['1984', '8th Lok Sabha', 'Bhanu Pratap Singh', 'Indian National Congress', '63.84%', 'Bharatiya Lok Dal', '23.39%'], ['1989', '9th Lok Sabha', 'Maneka Gandhi', 'Janata Dal', '57.34%', 'Indian National Congress', '29.37%'], ['1991', '10th Lok Sabha', 'Parshuram Gangwar', 'Bharatiya Janta Party', '30.86%', 'Janata Dal', '29.40%'], ['1996', '11th Lok Sabha', 'Maneka Gandhi', 'Janata Dal', '59.83%', 'Bharatiya Janta Party', '17.01%'], ['1998', '12th Lok Sabha', 'Maneka Gandhi', 'Independent', '55.99%', 'Bahujan Samaj Party', '22.60%'], ['1999', '13th Lok Sabha', 'Maneka Gandhi', 'Independent', '57.94%', 'Bahujan Samaj Party', '25.88%'], ['2004', '14th Lok Sabha', 'Maneka Gandhi', 'Bharatiya Janta Party', '37.75%', 'Samajwadi Party', '22.58%']]}