go object	go oil	go organ
go observe	go old	go organisation
go obtain	go on	go original
go obviously	go once	go other
go occur	go only	go our
go ocean	go open	go out
go of	go operate	go outside
go off	go operation	go over
go offer	go opportunity	go own
go office	go opposite	go oxygen
go officer	go or
go often	go order