main :- 
    print(ready),nl,ignore(demos),halt.

demos :-
	parents,
	siblings,
	aunts,
	sentence1.

parents  :- shows([the,parent,of,X,is,Y], 	parent(X,Y)).
siblings :- shows([the,sibling,of,X,is,Y],  sibling(X,Y)).
aunts    :- shows([the,aunt,of,X,is,Y], 	aunt(X,Y)).

sibling(no,one).
aunt(no,one).

sentence1 :- nl, sentence(X,[]),print(X),nl.
% add your code below for sisterals sisteral auntals and auntal