The support member converts from the undeployed mode into the deployed mode when a signal is received from {HEAD ~ the sensor} indicating {TAIL ~ a rollover} 
indicating
The support member converts from the undeployed mode into the deployed mode when a signal is received from { HEAD ~ the sensor } indicating { TAIL ~ a rollover }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL