angles appearance building capping cleaning cover covered covering danger dangers ear protection edge exterior external height high high-pressure improvement maintenance pressure pressure-cleaning renovating renovation repairs restoration restoring risks risky roof roof-area roofing rooftop safety shapes skies sky spray sunlight sunshine textures tiles tiling tools tough water wet work workman armory army bricks defend defense festung fortress green hidden historic modlin nature park parks protection roofs tower trees walls war long building. long roof bird's eye view block blocks attention beware blue careful caution child conduct control course drive guide happen highway industry kids law limit Look pedestrian pedestrians people playground playing respect road school sidewalk sign slow street symbol teen traffic transportation walk warning way zone area city dump environment garbage rubbish scarp scarpheap site waste Australian bushes edges flora foliage leaf leafed leaves light pain Prickly protective shrubs spikes spiky spines texture thick
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