{"in": ["fresh silage"], "out": ""}
{"in": [], "out": ""}
{"in": ["Milli-Q water"], "out": ""}
{"in": [], "out": ""}
{"in": [], "out": ""}
{"in": [], "out": "liquid phase"}
{"in": ["lactic acid"], "out": ""}
{"in": [], "out": ""}
{"in": [""], "out": "chromatographic peaks"}
{"in": [], "out": ""}
{"in": ["liquid phase"], "out": "chromatographic peaks"}