s i e n t t d
1. dentist
2. distent (obsolete; spread out; distended)
3. stinted (past tense of stint ~ supply inadequate amount of something)
I would help but I cant tell which clause is underline! sorry
This is a passive voice sentence
the active voice is "A dentist invented the electric chair"
So the subject is dentist
Hope I helped !
"I tell people that i love to dance, write, and paint."