In this task, find the most appropriate number to replace the blank (indicated with _ ) and express it in words.

[EX Q]: Merlin is about five and _ half inches long.
[EX A]: one

[EX Q]: Dairy cows live for _ generations, calve and produce normal milk on a protein-free diet.
[EX A]: six

[EX Q]: Plain water is the best liquid because it has _ calories or caffeine.
[EX A]:
no