Their camera is in the restaurant. - ?
Where is their camera?
Where is Kirsty's guitar?
Kirsty's guitar is in the flat.
Where is Kirsty's watch?
Kirtsy's watch is in the street
Their computer is in the park. - ?
Where is their computer?
Where are Henry's headphones?
Henry's headphones are in the flat.
Where are Kirsty's glasses?
Kirsty's glasses are in the shop