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.

Q: Wood consists of ____ distinct fuels.

A: two
****
Q: Corporate mergers occur when ____ companies combine.

A: two
****
Q: Balance is created by the equal presence of all ____ energies acting at once.

A:
four
****