Set more$\_$animals is initialized with three strings read from input. First, add more$\_$animals's elements to animals$\_$considered. Then, assign num$\_$animals with the number of elements in animals$\_$considered.

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Ex: If the input is:

cougar

goat

owl

then the output is:

$[\text{'}$cougar$\text{'},$ 'goat', 'lizard', 'owl'$]$

Number of values considered: $4$

Note: Because sets are unordered, the set is printed using the sorted$()$ function here for comparison.