{HEAD ~ The operating device} 1, further comprising {TAIL ~ a hydraulic pilot valve} configured to operate by causing the operating portion to swing, wherein: 
comprising
{ HEAD ~ The operating device } 1 , further comprising { TAIL ~ a hydraulic pilot valve } configured to operate by causing the operating portion to swing , wherein :
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH