river

Deductions

• type of system is for example river ⇐ (river is a type of system), (is a is inverse of is for example)
• river is a type of system ⇐ (ecosystem type is subclass of type of system), (river is a ecosystem type)
• ecosystem type is for example river ⇐ (river is a ecosystem type), (is a is inverse of is for example)
• river is for example River Thames ⇐ (River Thames is a river), (is a is inverse of is for example)
• river is for example Sista ⇐ (Sista is a river), (is a is inverse of is for example)
• river is for example Potomac River ⇐ (Potomac River is a river), (is a is inverse of is for example)