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:
Medial moraine is formed from ____ lateral moraines.
answer:
two


question:
Perennials are plants that live more than ____ growing seasons.
answer:
two


question:
Young salmon spend one to ____ years in their natal river.
answer:

four