kakei
1. river system
Noun
#210818
1. river system
1. Was a river system.
1. In river systems; Regarding river systems
1. Is not a river system.
1. If the river system; When the river system
1. River system.; Is a river system.
1. If/when river system; When a river system
1. It is not a river system.
1. It's not a river system.
1. Wasn't a river system.