Define the current person as a boy
greg.is_a_boy( "Greg" )
Define the current perdon as a girl
maia.is_a_girl( "Maia" )
Define the current person as a man
greg.is_a_man( "Greg" )
Define the current perdon as a woman
mu.is_a_woman( "Muriel" )
Define the current person as dead
jack.is_dead
Define that‘s two persons are divorced
sophie.is_divorced_with john
Define that‘s two persons are maried
mu.is_maried_with greg
Define that‘s a person is widower of another
simon.is_widower_of elisa
Define the kids of a single person
alice.kids( john, jack, julie )
[Validate]