When the situation arises, {HEAD ~ the flexible informational display panel} can be repositioned and extended downwardly below {TAIL ~ the vent panel pocket} and used to display information 
extended downwardly below
When the situation arises , { HEAD ~ the flexible informational display panel } can be repositioned and extended downwardly below { TAIL ~ the vent panel pocket } and used to display information
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH