sentence: The nails that I bought to construct the desks did not work, because the OPTIONS:
- nails were too strong.
- desks were too strong.
complete: desks were too strong.

sentence: they replaced the silicon material to cotton for baby clothes , the OPTIONS:
- cotton is warm.
- silicon is warm.
complete: cotton is warm.

sentence: The crane was useless to build the house, but we used the backhoe, as the OPTIONS:
- crane was superfluous at that point.
- backhoe was superfluous at that point.
complete:
crane was superfluous at that point.