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

Ex Input:
Sediment consists of _ visually distinct floc layers.

Ex Output:
two


Ex Input:
Relative wealth affects the market in _ ways.

Ex Output:
two


Ex Input:
Infantile colic is benign paroxysmal abdominal pain during the first _ months of life.

Ex Output:

three