Shopper: Have you any four-volt two-watt bulbs? Clerk: For what?
Shopper: No, four-volt, two-watt.
Clerk: Two what?
Shopper: yes!
Clerk: No.
Shopper: Have you any four-volt two-watt bulbs? Clerk: For what?
Shopper: No, four-volt, two-watt.
Clerk: Two what?
Shopper: yes!
Clerk: No.