TASK DEFINITION: In this task, find the most appropriate number to replace the blank (indicated with _ ) and express it in words.
PROBLEM: Dialogue is _ sides working together toward a common understanding.

SOLUTION: two

PROBLEM: Arthritis is the leading cause of disability in the state affecting about one in _ adults.

SOLUTION: three

PROBLEM: Recent studies suggest that as many as one couple in _ suffer from infertility.

SOLUTION:
six