sentence: Bob wanted to sell his piano and buy a keyboard, because the OPTIONS:
- piano was old.
- keyboard was old.
complete: piano was old.

sentence: Rachel had more friendships than Megan had because OPTIONS:
- Rachel was a much more shy person.
- Megan was a much more shy person.
complete: Megan was a much more shy person.

sentence: The warts were still there when we treated them with oil, but disappeared when we added salt, as the OPTIONS:
- oil was powerful as a cure.
- salt was powerful as a cure.
complete:
salt was powerful as a cure.