[{"from": "human", "value": "Based on the given information, design a molecule that meets the desired specifications. The molecule is the stable isotope of hydrogen with relative atomic mass 1.007825 and a natural abundance of 99.9885 atom percent (from Greek pirhoomegatauomicronsigma, first). It contains a proton."}, {"from": "gpt", "value": "[1HH1]"}]