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": ""}
 1472840 Ca   polygala nv=Vq    zt FABALES      sg POLYGALACEAE  7200  tO  united state5 R.O`    & . POLYGALA VERTICILLATA  Oakland aM:u      .8k7d [NEAR OXFORD].  powell lake region. ve=   oliver a. farwell QZs  
{"catalogNumber": "1472840", "order": "Fabales", "family": "Polygalaceae", "scientificName": "Polygala verticillata", "scientificNameAuthorship": "", "genus": "Polygala", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Oliver A. Farwell", "recordNumber": "7200", "verbatimEventDate": "", "habitat": "", "occurrenceRemarks": "[Near Oxford].", "associatedTaxa": "", "country": "United States", "stateProvince": "", "county": "Oakland", "municipality": "", "locality": "Powell Lake Region.", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}