Two men , one in blue and one in brown , are sitting on a boat .
Two ladies are napping on a yacht
Two men, one in blue and one in brown, are sitting on a boat.
Two ladies are napping on a yacht
Men and ladies are different genders.  Napping and sitting are different activities.  A boat and a yacht are different vehicles.
Men and ladies are different genders . Napping and sitting are different activities . A boat and a yacht are different vehicles .