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

Ex Input:
Carbon comes in _ kinds- dust, coconut shell or granulated.

Ex Output:
three


Ex Input:
Germs have _ means of locomotion execpt to attach themselves to particles of dust.

Ex Output:
no


Ex Input:
Spiritual slavery comes in _ forms.

Ex Output:

two