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: Comprehension is the second of the ____ elements of the informed consent process.

A: three
****
Q: Kinetic energy consists of ____ types of energies.

A: three
****
Q: Asphalt starts to deteriorate after ____ years.

A:
seven
****