my @UnNum =
    (
    [35, [qw(forc two bodi twice strong on bodi sai bodi mass)]],
    [39, [qw(you expect on think new bodi made two bodi origin)]],
    [60, [qw(attract bodi b origin force)]],
    [46, [qw(total forc b twice origin force)]],
    [34, [qw(sai on bodi twice mass three time mass forc six)]],
    [17, [qw(on now see why bodi fall same rate bodi twice)]],
    );