Detailed instructions for working a group puzzle of type 'Kathy'

This is a signature puzzle named 'Kathy'

The 5 elements in each group of this type of puzzle are: K, A, T, H, and Y.

Every group in the puzzle must contain exactly this set of elements.

Each row is a group numbered as shown in this Kathy figure.

In a Kathy puzzle, each row is a group numbered as shown in the figure above.

Each column is a group numbered as shown in this Kathy figure.

In a Kathy puzzle, each column is a group numbered as shown in the figure above.

Each pentomino is a group numbered as shown in this Kathy figure.

In a Kathy puzzle, each pentomino is a group numbered as shown in the figure above.