TASK DEFINITION: Given a sentence, fill out the missing word with a 'no' or a number (between zero and ten). You should write the numbers with english alphabet, like: four instead of 4.
PROBLEM: Most species have four toes, ____ of which are forward-pointing.

SOLUTION: three

PROBLEM: Most modern computers have ____ bits to a byte.

SOLUTION: eight

PROBLEM: Significant power is observed in the magnetic field oscillations with periods of ____ minutes.

SOLUTION:
five