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": ""}
 nigrum yke    H Greenland        wxc_ 174  o EMPETRUM NIGRUM     e&F 1925-08-07     FQd&_ 1509103       u qaasuitsup   1Vx,K L.
{"catalogNumber": "1509103", "order": "", "family": "", "scientificName": "Empetrum nigrum", "scientificNameAuthorship": "L.", "genus": "", "subgenus": "", "specificEpithet": "nigrum", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "174", "verbatimEventDate": "1925-08-07", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Greenland", "stateProvince": "Qaasuitsup", "county": "", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}