working grader and viewer (more css on the way)

dict/prepositions.txt

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+aboard
+about
+above
+across
+after
+against
+along
+amid
+among
+anti
+around
+as
+at
+before
+behind
+below
+beneath
+beside
+besides
+between
+beyond
+but
+by
+concerning
+considering
+despite
+down
+during
+except
+excepting
+excluding
+following
+for
+from
+in
+inside
+into
+like
+minus
+near
+of
+off
+on
+onto
+opposite
+outside
+over
+past
+per
+plus
+regarding
+round
+save
+since
+than
+through
+to
+toward
+towards
+under
+underneath
+unlike
+until
+up
+upon
+versus
+via
+with
+within
+without