instruction:
In this task, find the most appropriate number to replace the blank (indicated with _ ) and express it in words.
question:
Unipolar motors have _ coils and are likely to have five or six wires attached.
answer:
four


question:
Titanium is found in column _ along with chemically similar zirconium, hafnium, and thorium.
answer:
four


question:
Malaria is responsible for the deaths of up to _ million persons each year.
answer:

three