Three male and female pairs of dancers are on the stage at the ballet , with other ballerinas in the background .
It is impossible that three pairs of dancers sit in chairs backstage and relax after a performance .
It is impossible that three pairs of dancers sit in chairs backstage and relax after a performance .
Chances are about even that three pairs of dancers sit in chairs backstage and relax after a performance .
Three pairs of dancers sit in chairs backstage and relax after a performance .