-- Original declared resources:
	["infinite-bauxite-ore"] = resource_price,
	["infinite-cobalt-ore"] = resource_price,
	["infinite-copper-ore"] = resource_price,
	["infinite-gem-ore"] = resource_price,
	["infinite-gold-ore"] = resource_price,
	["infinite-iron-ore"] = resource_price,
	["infinite-lead-ore"] = resource_price,
	["infinite-nickel-ore"] = resource_price,
	["infinite-quartz"] = resource_price,
	["infinite-rutile-ore"] = resource_price,
	["infinite-silver-ore"] = resource_price,
	["infinite-sulfur"] = resource_price,
	["infinite-tin-ore"] = resource_price,
	["infinite-tungsten-ore"] = resource_price,
	["infinite-zinc-ore"] = resource_price,
	["infinite-coal"] = resource_price,
	["infinite-stone"] = resource_price,
	["infinite-y-res1"] = resource_price,
	["infinite-y-res2"] = resource_price,
	["infinite-uraninite"] = resource_price,
	["infinite-fluorite"] = resource_price,
	["y-res1"] = resource_price,
	["y-res2"] = resource_price,
	["uraninite"] = resource_price,
	["fluorite"] = resource_price,
	["bauxite-ore"] = resource_price,
	["cobalt-ore"] = resource_price,
	["gold-ore"] = resource_price,
	["lead-ore"] = resource_price,
	["nickel-ore"] = resource_price,
	["quartz"] = resource_price,
	["rutile-ore"] = resource_price,
	["silver-ore"] = resource_price,
	["sulfur"] = resource_price,
	["tin-ore"] = resource_price,
	["tungsten-ore"] = resource_price,
	["zinc-ore"] = resource_price,

	-- Potential undeclared resources:
	["tm-electric-pole"] = resource_price_new,
	["bi_bio_Solar_Farm_Image"] = resource_price_new,
	["bi_light_for_Bio_Farm"] = resource_price_new,
	["bi_medium-electric-pole_for_Bio_Farm"] = resource_price_new,
	["bi_solar-panel_for_Bio_Farm"] = resource_price_new,
	["combat-robot-dispenser-equipment"] = resource_price_new,
	["computer"] = resource_price_new,
	["factory-power-distributor"] = resource_price_new,
	["factory-power-provider"] = resource_price_new,
	["factory-power-receiver"] = resource_price_new,
	["fission-reactor-fuel"] = resource_price_new,
	["nuclear-fission-reactor-chest-25"] = resource_price_new,
	["nuclear-fission-reactor-chest-9"] = resource_price_new,
	["reactor-pipe-bus-horiz"] = resource_price_new,
	["reactor-pipe-bus-vert"] = resource_price_new,
	["steam-generator-01-cold-input"] = resource_price_new,
	["tm-solar-panel"] = resource_price_new,
	["turbine-generator-cold-leg-box"] = resource_price_new,
	["turbine-generator-feed-water-box"] = resource_price_new,
	["turbine-generator-low-p-steam-box-01"] = resource_price_new,
	["turbine-generator-low-p-steam-box-02"] = resource_price_new,
	["turbine-generator-low-p-steam-box-03"] = resource_price_new,
	["turbine-generator-low-p-steam-box-04"] = resource_price_new,
	["y-accumulator-s"] = resource_price_new,
	["y-accumulator-s-t2"] = resource_price_new,
	["y-notfall-generator-s1"] = resource_price_new,
	["y-small-stirling-engine"] = resource_price_new,
	["y-steam-turbine-mk3"] = resource_price_new,
	["yi_obelisk_A3_5X"] = resource_price_new,
	["yir_blue_tile"] = resource_price_new,
	["yir_copper_tile"] = resource_price_new,
	["yir_iron_tile"] = resource_price_new,
	["yir_metal2_tile"] = resource_price_new,
	["yir_wood2_tile"] = resource_price_new,
	["yir_wood4_tile"] = resource_price_new,

	-- Free items/fluids (recipe without ingredients):
	["y-dirt"] = free_price,
	["y-fame"] = free_price,
	["y_greensign"] = free_price,
	["ypfw_trader_sign"] = free_price,

	-- Unknown items/fluids (no recipe or loop):
	["tank-machine-gun"] = unknown_price,
	["vehicle-machine-gun"] = unknown_price,
	["mjollnir"] = unknown_price,
	["dummy-selection-tool"] = unknown_price,
	["gatling-gun"] = unknown_price,
	["laser-beam-rifle"] = unknown_price,
	["tank-cannon-2"] = unknown_price,
	["tank-cannon-3"] = unknown_price,
	["tank-cannon"] = unknown_price,
	["tank-artillery-1"] = unknown_price,
	["tank-artillery-2"] = unknown_price,
	["tank-laser"] = unknown_price,
	["laser-beam-rifle-ammo"] = unknown_price,
	["low-pressure-steam"] = unknown_price,
	["superheated-steam"] = unknown_price,
	["y_syngas_clean"] = unknown_price,
	["y-fuel-cell-c"] = unknown_price,
	["ye_science_blue"] = unknown_price,
	["ye_science_ultimate"] = unknown_price,
	["y_trade_ultimate"] = unknown_price,