One man plays an acoustic guitar, while another accompanies him on the accordion.
Two men play their musical instruments.
Two woman play piano.
There is a man.
The dog has been running.
There is no gain in offering the discount, no matter what the value of the service is.
In 1889, the first kabuki theater was built on this site.
A man is exercising on the moon while an elephant drinks his two bottles of tea.
The test should be valid.