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": ""}
POLYDGONUM  <B2   jo C Don Henson  E 1/2 SEC 19 & 30 T49N-R39W CA.  MILES NNW BRUCE CROSSING. SO?K    ONTONAGON K g           1466030 8`OJ   [-w f L.     2? 46.621847   =polygonum aviculare em!   3771 &( 
{"catalogNumber": "1466030", "order": "", "family": "", "scientificName": "Polygonum aviculare", "scientificNameAuthorship": "L.", "genus": "Polygonum", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Don Henson", "recordNumber": "3771", "verbatimEventDate": "", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "", "county": "Ontonagon", "municipality": "", "locality": "E 1/2 Sec 19 & 30 T49N-R39W ca. 6 miles NNW Bruce Crossing.", "decimalLatitude": "46.621847", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}