In this task, find the most appropriate number to replace the blank (indicated with _ ) and express it in words.

Ex Input:
Melanocytes are dendritic and are distributed roughly _ per six basal cells.

Ex Output:
one


Ex Input:
Sturgeons are shark-like in form but are unique in having _ rows of bony plates along the body.

Ex Output:
five


Ex Input:
Fraternal twins occur when _ separate eggs are fertilized.

Ex Output:

two