Conversation so far:
what relationships did nicole have?
Kidman has been married twice: previously to actor Tom Cruise.
and to who after tom cruise?
and currently to country singer Keith Urban.
She has an adopted.
she has an adopted what?
She has an adopted son and daughter with Cruise as well as two.

Question: as well as two what?
Self-contained rewrite: Nicole Kidman has an adopted son and daughter as well as two what?