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This paper focuses on variants of the problem in which time-slot assignment constraints are enforced to model the operation of the equipment placed at the nodes of a SONET ring . Then , in the entry for May 10 , Emerson wrote " Volume of dust clouds rising from pit tremendously increased ; an impressive sight from Observatory [ located at the site of the modern Volcano House Hotel ] at 6:30 a.m ... The exclusive event will take place on the site of the former Walker Air Force Base . During the process of the negotiations we will be consulting broadly with Australian business and other interested parties in this particular market . We on this side of the House believe that the parliament should play a prominent role in scrutinising intended treaties . There is actually a quite simple difference between this side of the House and that side of the House : on this side of the House we stick up for Australia , and on that side of the House you stick up for our critics . The Papua New Guinea government has shown great courage in its commitment to reform and has eschewed expediency in the interests of the nation , and that is something that on this side of the House we admire .