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": ""}
South Dakota 0   .:4jT POLYGONUM AVICULARE SUBS=P. BUXIFORME   fmH caryophyllales  Gj1E# SUBSP. buxiforme bf2OX     l (SMALL) COSTEA & TARDIF JACOB F. BRENCKLE + k  39-15 ps`v    Polygonaceae  x     5l united states 1439766   .+      m Polyg0num     
{"catalogNumber": "1439766", "order": "Caryophyllales", "family": "Polygonaceae", "scientificName": "Polygonum aviculare subsp. buxiforme", "scientificNameAuthorship": "(Small) Costea & Tardif", "genus": "Polygonum", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "subsp.", "infraspecificEpithet": "buxiforme", "identifiedBy": "", "recordedBy": "Jacob F. Brenckle", "recordNumber": "39-15", "verbatimEventDate": "", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "South Dakota", "county": "", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}