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": ""}
      18v 42.4162778          1929-05-23 cx  MAIANTHEMUM RACEMOSUM s5  asparagaceae 41P&EX    _1CQ MARYGROVE CAMPUS. [MARYGROVE COLLEGE CAMPUS, 8425 W. MCNICHOLS ST, SOUTHAST CORNER OF WYOMING ST. AND W MCNICHOLS RD., DETROIT, WAYNE CO. MICHIGAN]       
{"catalogNumber": "", "order": "", "family": "Asparagaceae", "scientificName": "Maianthemum racemosum", "scientificNameAuthorship": "", "genus": "", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "", "verbatimEventDate": "1929-05-23", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "", "county": "", "municipality": "", "locality": "Marygrove campus. [Marygrove College Campus, 8425 W. McNichols St, southeast Corner of Wyoming St. and W McNichols Rd., Detroit, Wayne Co. Michigan]", "decimalLatitude": "42.4162778", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}