@sflaum,
Both are nowns
Either...or is normally seen as exclusive disjunction.
EG
Either I will go swimming or see a movie. (I can also choose to do neither.)
But, in some contexts, either...or can be read as inclusive disjunction:
Father to teen son: Either see a movie or go swimming. Don't sit round here whining all day! (You must do at least one of those things,
but you are not precluded from doing both.)