{HEAD ~ The actuator} is divided into two cells by {TAIL ~ a power transfer shaft} to which is attached a vent follower 
{ HEAD ~ The actuator } is divided into two cells by { TAIL ~ a power transfer shaft } to which is attached a vent follower
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH