31.   Tensions rose in the Spratlys in February after Manila announced that China has constructed what could be a naval support structure on Mischief Reef, claimed by the Philippines.

32.   Tension rose in the Spratlys in February after Manila announced that China had constructed what could be a naval support structure on Philippine-claimed Mischief Reef.

33.   Tension rose last year after the Philippines said China had constructed what could be a naval support structure on a Spratly reef claimed by Manila.