COMPUTER1=(DESCRIPTION= 
	(ADDRESS=
		(PROTOCOL=TCP)
		(HOST=COMPUTER1)
		(PORT=1521))
	(CONNECT_DATA=
		(SID=CUSTOMER)))

ARGO=(DESCRIPTION=
	(ADDRESS=
		(PROTOCOL=TCP)
		(HOST=argo)
		(PORT=1525))
	(CONNECT_DATA=
		(SID=CUSTOMER)))

COMPUTER2=(DESCRIPTION=
	(ADDRESS=
		(PROTOCOL=TCP)
		(HOST=computer2)
		(PORT=1521))
	(CONNECT_DATA=
		(SID=BUYERS)))