In the first and second statements, the common code is ‘dan’ and the common word is ‘wrestler’.
In the second and third statements, the common words is ‘fit’ and the common word is ‘is’.
So, ‘fit’ means ‘is’.

In given word, word is increasing and decreasing by one alternatively as,
S +1 T
I -1 H
K +1 L
K -1 J
I +1 J
M -1 L

So in the same way TRAINING will be UQBHOHOF

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

ROAR  =  URDU

Each letter moves +3. Add 3 to each letter of URDU,so code of URDU will be XUGX

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

URDU  =  XUGX

In the second and third statements, the common code is ‘hee’ and the common word is ‘horses’. So, ‘hee’ means ‘horses’.

Thus, ‘sik’ means ‘large’ from second statement.

In first and third statements, the common code is ‘pee’ and common word is ‘are’. So, ‘pee’ means ‘are’.

Thus, ‘mit’ means ‘pigs’ from third statement.