four stunt planes in midair
two propeller planes with white smoke
four small planes in blue sky
four bi planes flying in formation
all but one plane is putting out smoke
the planes are doing tricks
the planes are flying upside down
four planes in sky
the planes are flying
there are four planes
the planes are upside down 
four planes flying upside down
the planes are in an air show 
planes flying in an air show
planes flying in a formation 
planes flying in a synchronized formation 
two planes are purple 
two planes are yellow and blue 
very heavy smoke
six small planes fly in formation in the blue sky