TASK DEFINITION: In this task, find the most appropriate number to replace the blank (indicated with _ ) and express it in words.
PROBLEM: Giraffes have two horns and _ or three knobs.

SOLUTION: two

PROBLEM: All children normally wake up four or _ times each night after dreams.

SOLUTION: five

PROBLEM: Neutrons consist of _ up quark and two down quarks.

SOLUTION:
one