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

Ex Input:
Communion is that which is shared between the _ persons of the Holy Trinity.

Ex Output:
three

Ex Input:
Manatees reach sexual maturity in _ to five years.

Ex Output:
two

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

Ex Output:
three