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

Ex Input:
Blood pressure is really _ measurements, systolic and diastolic.

Ex Output:
two


Ex Input:
Conserved residues make similar contacts in _ repressor-operator complexes.

Ex Output:
two


Ex Input:
Sugar cane is used to make rum at _ distilleries.

Ex Output:

three