以下为句子列表：
英文: Within massive sandstone outcrops, above comparatively dense forest, are five clusters of natural rock shelters, displaying paintings that appear to date from the Mesolithic Period right through to the historical period.
中文: 在密林中大量沙石岩中，有五组天然石窟，里面岩画的历史从中石器时代一直延续到文明历史时代。
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