"You have a 6-foot-tall dad and a 3-foot-tall child using the same desk and chair."
(You; have; a 6-foot-tall dad and a 3-foot-tall child) (a 3-foot-tall child; using; the same desk and chair)
You a 3-foot-tall child
have using
a 6-foot-tall dad and a 3-foot-tall child
the same desk and chair