Write the contracts used to create each of the following collections of examples.
1
(EXAMPLE (big-triangle 100 "red")
(triangle 100 "solid" "red"))
(EXAMPLE (big-triangle 200 "orange")
(triangle 200 "solid" "orange"))
2
(EXAMPLE (purple-square 15)
(rectangle 15 15 "outline" "purple"))
(EXAMPLE (purple-square 6)
(rectangle 6 6 "outline" "purple"))
3
(EXAMPLE (banner "Game Today!")
(text "Game Today!" 50 "red"))
(EXAMPLE (banner "Go Team!")
(text "Go Team!" 50 "red"))
(EXAMPLE (banner "Exit")
(text "Exit" 50 "red"))
4
(EXAMPLE (twinkle "outline" "red")
(star 5 "outline" "red"))
(EXAMPLE (twinkle "solid" "pink")
(star 5 "solid" "pink"))
(EXAMPLE (twinkle "outline" "grey")
(star 5 "outline" "grey"))
5
(EXAMPLE (half 5) (/ 5 2))
(EXAMPLE (half 8) (/ 8 2))
(EXAMPLE (half 900) (/ 900 2))
These materials were developed partly through support of the National Science Foundation,
(awards 1042210, 1535276, 1648684, and 1738598). 
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