Refactor the unstructured text into a valid JSON dictionary. The key names follow the Darwin Core Archive Standard. If a key lacks content, then insert an empty string. Fill in the following JSON structure as required: {"catalogNumber": "", "order": "", "family": "", "scientificName": "", "scientificNameAuthorship": "", "genus": "", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "", "verbatimEventDate": "", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "", "county": "", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}
   y a 26726  Y contact um herbarium  7 Jefferson 38.125 x     h arborescens     MISSOURI &.`   F~s HYDRANGEACEAE  / 1985-07-21 L. B01$M    120470S2 T$      C -90.675     hydrangea awrborscens  
{"catalogNumber": "1204702", "order": "", "family": "Hydrangeaceae", "scientificName": "Hydrangea arborescens", "scientificNameAuthorship": "L.", "genus": "", "subgenus": "", "specificEpithet": "arborescens", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "26726", "verbatimEventDate": "1985-07-21", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "Missouri", "county": "Jefferson", "municipality": "", "locality": "Contact UM Herbarium", "decimalLatitude": "38.125", "decimalLongitude": "-90.675", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}