{HEAD ~ The breather bag} is vertically mounted to a top surface of {TAIL ~ the mounting surface structure} 
{ HEAD ~ The breather bag } is vertically mounted to a top surface of { TAIL ~ the mounting surface structure }
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL