A girl in a blue shirt and yellow shorts is jumping in the air and yelling into a microphone on a stage .
It is unlikely that cheerleader pumps up the fans on stage at a pep rally .
It is probable that cheerleader pumps up the fans on stage at a pep rally .
It is unlikely that cheerleader pumps up the fans on stage at a pep rally .
Cheerleader pumps up the fans on stage at a pep rally .