sentence: The new lawn mower Billy purchased for his house would not fit in his old shed, the 
complete: shed was too narrow.

sentence: The ring had a large gemstone, which amazed Victoria but not Cynthia, since 
complete: Cynthia had never been interested in geology.

sentence: The noise from the thunderstorm bothered Elena more than Megan, so 
complete:
Megan didn't need earplugs while they slept.