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

This is a signature puzzle named 'April'

The 5 elements in each group of this type of puzzle are: A, P, R, I, and L.

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

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

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

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

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

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

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