instruction:
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.
question:
Neutrinos are particles with almost ____ mass and no electric charge.
answer:
no


question:
Ligand seeks ____ receptors into binding and mutual phosporylation.
answer:
two


question:
Sexual maturity occurs at ____ years of age.
answer:

ten