Female from 2
Female and male from 3
Male and female from 4
Female and male from 6
Male 7
Female and female 8
Male and male from 10
Female from 11
Male and female and female from 12
Still left:
Male and male from 1. Female and female from 1.
Male from 2. Male and male from 2.
Female and female from 3.
Male and male from 4.
Female and male from 5. Male and female from 5.
Female and female from 6.
Male from 7. Female and famale from 7.
Male and female from 8.
Female and female from 10.
Female from 12.
25 left. One can win.
I don't remember if I specified any spesific relations for every character. So please correct me if I got something wrong.