Table:
text: Liechtensteiner National Badminton Championships
Past winners
Past winners
Year_ Mens_singles Womens_singles Mens_doubles Womens_doubles Mixed_doubles
1986 Armand Jehle Cornelia Marxer Armand Jehle Markus Becker Cornelia Marxer Astrid Wanger Lothar Iser Astrid Wanger
1987 Armand Jehle Cornelia Marxer Armand Jehle Markus Becker Cornelia Marxer Astrid Wanger Lothar Iser Astrid Wanger
1988 Armand Jehle Cornelia Marxer Guenther Schaedler Mario Minder Cornelia Marxer Astrid Wanger Mario Minder Astrid Wanger
1989 Mario Minder Astrid Wanger Guenther Schaedler Mario Minder Cornelia Marxer Astrid Wanger Mario Minder Astrid Wanger
1990 Mario Minder Myriam Eisensohn Ernst Bolkart Roland Hilti no competition Mario Minder Astrid Wanger
1991 Armand Jehle Astrid Eidenbenz no competition no competition no competition

Question: In 1987, who is the Mens Singles for Liechtenstein National Badminton Championships ?