boom buildings cambodia cap changing-a-globe city-street-light clouds crane danger electricity heavy-duty height high hook light lighting mobile-crane open overhead public-utility risk risky sky steel-cables street-light telescopic-boom up-above wires wiring workman angles appearance building capping cleaning cover covered covering dangers ear protection edge exterior external high-pressure improvement maintenance pressure pressure-cleaning renovating renovation repairs restoration restoring risks roof roof-area roofing rooftop safety shapes skies spray sunlight sunshine textures tiles tiling tools tough water wet work advice advising alert black communicate communication concern electric-power electrical electricity-power-lines energy equipment high-voltage information informing power power-lines power-supply protect protection sign strength supply warning yellow appropriate-behavior appropriate-behaviour care deep deep-water denied depth direction don’t-alight flowers foliage not-allowed not-permitted permission-denied plants prohibited prohibition river riverside signs white active activity bare bared-top canoe canoeing canoeist double-bladed paddle kayak kayaker kayaking leisure leisurely movement moving outdoor outdoor sports outdoors outside paddle paddle blades paddling pale pastime recreation sea sensitive skin sport sportsman sunburn transportation travel waves avoid be-careful careful caution communicating dangerous flammable gas gaseous natural-gas no-ignition outlet potential red stay-clear vapour vapours warned warning-sign accident broken damage damaged dangling heights machinery overturned perspectives power-pole repairing replace replacement replacing snapped snapped-off-pole-part surface surfaces trailer up-high workmen arm basket cherry-picker elevated elevation extension Harness insulators on-high raised raised-platform safety-harness washing announcement beware color coloration colored colorful colors colour coloured colourful colours directions hiking Look looking lookout observant paths tracks walk walking walking-paths walking-tracks watch watch-out consumption faucet health listen rules tap undrinkable unhealthy
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