Shape Circus

“Ladies and gentlemen, welcome to the shape circus!” Circle, triangle, circle, triangle, circle. “And next?” It’s a triangle. “Great!” Square, square, circle, square, square, circle, square, square. “And next?” It’s a circle! “Exellent! Now, the other shapes!” Rectangle, oval, oval, rectangle, oval, oval, rectangle, oval, “And next?” “Um...Oval!” It’s an oval.