sentence: Sam was not able to use the humidifier and instead used nasal spray to soothe his nose congestion, because the  OPTIONS:
- humidifier was dirty.
- nasal spray was dirty.
complete: humidifier was dirty.

sentence: The tornado demolished the house but left the barn intact, as the  OPTIONS:
- house was a rugged structure.
- barn was a rugged structure.
complete: barn was a rugged structure.

sentence: Sam gave away his books but kept his VHS tapes when he moved because the  OPTIONS:
- books are ubiquitous and worthless.
- VHS tapes are ubiquitous and worthless.
complete:
books are ubiquitous and worthless.