21.small.input 152 B

1234
  1. mxmxvkd kfcds sqjhc nhms (contains dairy, fish)
  2. trh fvjkl sbzzf mxmxvkd (contains dairy)
  3. sqjhc fvjkl (contains soy)
  4. sqjhc mxmxvkd sbzzf (contains fish)