outside front board
inside front board item 1 r
item 1 v item 2 r
item 2 v item 3 r
item 3 v item 3, enclosure r
item 3, enclosure v item 4 r
item 4 v item 4 [a] r
item 4 [a] v item 5 r
item 5 v item 6 r
item 6 v item 7 r