Several groups of people are in sculling boats on a river.
Verschillende groepen mensen zijn in sculling boten op een rivier.
Some people were on river boats.
Sommige mensen zaten op rivierboten.
Although several groups of people are in sculling boats, some people may or may not be on river boats.
Hoewel verschillende groepen mensen in sculling boten, sommige mensen misschien wel of niet op rivierboten.