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

Ex Input:
Sexual selection has _ components, intrasexual competition and intersexual selection.

Ex Output:
two


Ex Input:
Cichlids are popular in the aquarium hobby for a _ reason.

Ex Output:
four


Ex Input:
Anaerobic bacteria are most active over the weekend when _ processes are running.

Ex Output:

no