The surface helps with your direction and there is a compass on board that you can use to follow compass courses.
(The surface; helps; with your direction) (board; can use; to follow compass courses) Context(board can use,List([64, 86))):(you; to follow; compass courses)
board can use,List([64, 86))
The surface board you
helps can use to follow
with your direction
to follow compass courses
compass courses