"apple" => ("red", "round", "plant", "fruit")
"orange" => ("orange", "round", "plant", "fruit")
"pumpkin" => ("orange", "round", "plant", "vegetable")
"ball" => ("red", "round", "toy")

##</code><code>##

(apple, orange, pumpkin):
  orange: 2
  round: 3
  plant: 3
  fruit: 2
(apple, orange, ball):
  red: 2
  round: 3
  plant: 2
  fruit: 2
(apple, pumpkin, ball):
  red: 2
  round: 3
  plant:2
(orange, pumpkin, ball):
  orange: 2
  round: 3
  plant: 2