{HEAD ~ The valve member} substantially prevents fluid from flowing: from the third port to the first port; from {TAIL ~ the second port} to the first port; from the third port to the second port; and directly from the first port to the third port 
{ HEAD ~ The valve member } substantially prevents fluid from flowing : from the third port to the first port ; from { TAIL ~ the second port } to the first port ; from the third port to the second port ; and directly from the first port to the third port
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH 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 OTH