child(ma
child(cha
child(car
child(lau
descend
descend
d2.pl
artha, charlo
arlotte, caro
roline, laura)
ura, rose).
(X, Y) :‐ desc
child
(X, Y) :‐ child
tte).
line).
).
cend(Z, Y),
d(X, Z).
d(X, Y).