return {
	"acid0", "acid1", "acid2", "acid3", "acid4",
	"acid5", "acid6", "acid7", "acid8", "acid9",
	"acid10", "acid11", "acid12", "acid13", "acid14",
	"acid15",

	"ae_trailer",

	"any0", "any1", "any2", "any3", "any4",
	"any5", "any6", "any7", "any8", "any9",
	"any10", "any11", "any12", "any13", "any14",
	"any15", "any16", "any17", "any18", "any19",
	"any20", "any21", "any22", "any23", "any24",
	"any25", "any26", "any27", "any28", "any29",
	"any30", "any31", "any32", "any33", "any34",
	"any35", "any36", "any37", "any38", "any39",
	"any40", "any41", "any42", "any43", "any44",
	"any45", "any46", "any47", "any48", "any49",
	"any50",
	
	"anyAE1", "anyAE2", "anyAE3", "anyAE4", "anyAE5",
	"anyAE6", "anyAE7", "anyAE8", "anyAE9", "anyAE10",
	"anyAE11", "anyAE12", "anyAE13", "anyAE14", "anyAE15",
	"anyAE16", "anyAE17", "anyAE18", "anyAE19", "anyAE20",
	"anyAE21", "anyAE22", "anyAE23", "anyAE24", "anyAE25",
	"anyAE26", "anyAE27", "anyAE28", "anyAE29", "anyAE30",
	"anyAE31", "anyAE32", "anyAE33", "anyAE34", "anyAE35",
	"anyAE36", "anyAE37", "anyAE38", "anyAE39", "anyAE40",

	"barrels", "belt",

	"cave1", "cave2", "cave3", "cave4", "cave5",
	
	"caveAE1", "caveAE2", "caveAE3", "caveAE4",

	"crosscrack", "crosscrack2", "crosscrack3", "crosscrack4",
	"crosscrack5", "crosscrack6", "crosscrack7", "crosscrack8",
	"crosscrack9", "crosscrack10", "crosscrack11", "crosscrack12",
	"crosscrack13", "crosscrack14", "crosscrack15",
	
	"crosscrackAE1", "crosscrackAE2", "crosscrackAE3", "crosscrackAE4",
	"crosscrackAE5",

	"ctf0", "ctf1", "ctf2", "ctf3", "ctf4",
	"ctf5", "ctf6", "ctf7", "ctf8", "ctf9",
	"ctf10", "ctf11", "ctf12", "ctf13", "ctf14",

	"disposal", "disposal1", "disposal2", "disposal3", "disposal4",
	"disposal5", "disposal6", "disposal7", "disposal8", "disposal9",
	"disposal10", "disposal11", "disposal12", "disposal13", "disposal14",
	"disposal15", "disposal16", "disposal17", "disposal18", "disposal19",
	"disposal20",
	
	"disposalAE1", "disposalAE2", "disposalAE3", "disposalAE4", "disposalAE5",

	"final_island", "final_mission",

	"goo1", "goo2", "goo3", "goo4", "goo5", "goo6", "goo7",

	"grass0", "grass1", "grass2", "grass3", "grass4",
	"grass5", "grass6", "grass7", "grass8", "grass9",
	"grass10",

	"hightide1", "hightide2", "hightide3", "hightide4", "hightide5",
	"hightide6", "hightide7", "hightide8", "hightide9", "hightide10",
	"hightide11", "hightide12", "hightide13", "hightide14", "hightide15",
	"hightide16", "hightide17", "hightide18", "hightide19", "hightide20",

	"hightideAE1", "hightideAE2", "hightideAE3", "hightideAE4", "hightideAE5",
	"hightideAE6", "hightideAE7",
	
	"island_ending",

	"matt",

	"mix0", "mix1", "mix2", "mix3", "mix4", "mix5", "mix6",	"mix7", "mix8",
	"mix9", "mix10",

	"mountclear1",
	"null",

	"opendam1", "opendam2", "opendam3", "opendam4", "opendam5",
	"opendam6", "opendam7", "opendam8", "opendam9", "opendam10",
	"opendam11", "opendam12", "opendam13", "opendam14", "opendam15",
	"opendam16", "opendam17", "opendam18", "opendam19", "opendam20",
	
	"opendamAE1", "opendamAE2", "opendamAE3", "opendamAE4",

	"sand0", "sand1", "sand2", "sand3", "sand4",
	"sand5", "sand6", "sand7", "sand8", "sand9",
	"sand10", "sand11", "sand12", "sand13", "sand14",
	"sand15",

	"sand_hole1", "sand_hole2", "sand_hole3", "sand_hole4",
	"sand_holeAE1", "sand_holeAE2", "sand_holeAE3", "sand_holeAE4",
	"sand_holeAE5", "sand_holeAE6",

	"snow0", "snow1", "snow2", "snow3", "snow4",
	"snow5", "snow6", "snow7", "snow8", "snow9",
	"snow10", "snow11", "snow12", "snow13", "snow14",
	"snow15", "snow16", "snow17", "snow18", "snow19",
	"snow20", "snow21", "snow22", "snow23", "snow24",
	"snow25",

	"terraformer1", "terraformer2", "terraformer3", "terraformer4",
	"terraformer5", "terraformer6", "terraformer7", "terraformer8",

	"terraformerAE1", "terraformerAE2", "terraformerAE3", "terraformerAE4",
	"terraformerAE5",
	
	"trailer",

	"train0", "train1", "train2", "train3", "train4",
	"train5", "train6", "train7", "train8", "train9",
	"train10", "train11", "train12", "train13", "train14",
	"train15", "train16", "train17", "train18", "train19",
	"train20",

	"trainAE1", "trainAE2", "trainAE3", "trainAE4", "trainAE5",
	"trainAE6", "trainAE7", "trainAE8", "trainAE9", "trainAE10",
	
	"tutorial",

	"volcano1", "volcano2", "volcano3", "volcano4",
	"volcano5", "volcano6", "volcano7", "volcano8",
	"volcano9", "volcano10",
	
	"volcanoAE1", "volcanoAE2", "volcanoAE3", "volcanoAE4",
	"volcanoAE5"
	
}
