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": ""}
   tragus raceosus >8K   TRAGUS N   S ;j racemosus    Poales @ spk  MICHIGAN fw     Ve?3 Ingham    1891-08-21 wWUH   S.N. `H&   GRPM 42464 +    cm Poaceae    z c$= 1488819
{"catalogNumber": "1488819", "order": "Poales", "family": "Poaceae", "scientificName": "Tragus racemosus", "scientificNameAuthorship": "", "genus": "Tragus", "subgenus": "", "specificEpithet": "racemosus", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "s.n.", "verbatimEventDate": "1891-08-21", "habitat": "", "occurrenceRemarks": "GRPM 42464", "associatedTaxa": "", "country": "", "stateProvince": "Michigan", "county": "Ingham", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}