When {TAIL ~ the support member} is deployed into the deployed mode, the support member is disposed in effective engagement with the vehicle roof to limit movement of {HEAD ~ the roof} toward the vehicle seat during rollover conditions 
When { TAIL ~ the support member } is deployed into the deployed mode , the support member is disposed in effective engagement with the vehicle roof to limit movement of { HEAD ~ the roof } toward the vehicle seat during rollover conditions
OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH