Washington metropolitan area

Deductions

• metropolitan area is for example Washington metropolitan area ⇐ (Washington metropolitan area is a metropolitan area), (is a is inverse of is for example)
• Washington metropolitan area is a metropolitan area ⇐ (metropolitan statistical area is subclass of metropolitan area), (Washington metropolitan area is a metropolitan statistical area)
• metropolitan statistical area is for example Washington metropolitan area ⇐ (Washington metropolitan area is a metropolitan statistical area), (is a is inverse of is for example)