evidence: CANBERRA: The term "rocky relations" took on new meaning after Chinese civilian maritime enforcement ships confronted a Philippines Navy frigate in a standoff over a disputed shoal in the South China Sea. The Scarborough Shoal is marked by five rocks, the tallest of which projects 3 meters above water at high tide. The surrounding fishing grounds and, more importantly, the legal principles determining ownership and right of exploitation are at issue. [...] Both China and the Philippines claim that Scarborough Shoal is an integral part of their national territory. China refers to Scarborough Shoal as Huangyan Island, claiming "indisputable sovereignty" over the island and adjacent waters on the basis of historical discovery. [...] The Philippines refers to Scarborough Shoal as Panatag Shoal, arguing that if falls within its 200- nautical-mile EEZ. The claim rests on sovereign rights to the resources within the EEZ and continental shelf.