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

[Q]: Alcohol is high in calories - it supplies _ calories per gram and no nutrients worth mentioning.
[A]: seven

[Q]: Liquid crystals lack the full _ dimensional position and orientation order of ordinary crystals.
[A]: three

[Q]: Elderly populations are also skewed, with more than _ women for each man at some ages.
[A]:
four