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": ""}
 cCh 1933-06-04     ?+u contact um herbarium Cyrus L. Lndell n     C.D. ADAMS b4    VE^LUTINA b[8   rhynchospora velutina .6St            1137698 _a  
{"catalogNumber": "1137698", "order": "", "family": "", "scientificName": "Rhynchospora velutina", "scientificNameAuthorship": "", "genus": "", "subgenus": "", "specificEpithet": "velutina", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "C.D. Adams", "recordedBy": "Cyrus L. Lundell", "recordNumber": "", "verbatimEventDate": "1933-06-04", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "", "county": "", "municipality": "", "locality": "Contact UM Herbarium", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}