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": ""}
asparagales +R TZ   GRPM 42177 F?mV  H. Eggert KD     pS4? 1492350  _@h 1877-05-29     L7 Asparagaceae   yKzK racemosum   St. Louis suD   Maianthemum racemosum &         [ MAIANTHEMUM  (L.) Link % >   U$^FY CONTACT U/M HERBARIUM
{"catalogNumber": "1492350", "order": "Asparagales", "family": "Asparagaceae", "scientificName": "Maianthemum racemosum", "scientificNameAuthorship": "(L.) Link", "genus": "Maianthemum", "subgenus": "", "specificEpithet": "racemosum", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "H. Eggert", "recordNumber": "", "verbatimEventDate": "1877-05-29", "habitat": "", "occurrenceRemarks": "GRPM 42177", "associatedTaxa": "", "country": "", "stateProvince": "", "county": "St. Louis", "municipality": "", "locality": "Contact UM Herbarium", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}