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": ""}
  + POLYGALA SENEGA   /pxn senega -83.726758 uT  l. Ys         michigan c r   671 @[I  42.292178 [ r    bBK9 14>72827  Polygalaceae AV (   FABALES  0  1918-05-20 9.V   :$O0 WASHTENAW  xl CLAY SOIL-HILLSIDE.  
{"catalogNumber": "1472827", "order": "Fabales", "family": "Polygalaceae", "scientificName": "Polygala senega", "scientificNameAuthorship": "L.", "genus": "", "subgenus": "", "specificEpithet": "senega", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "671", "verbatimEventDate": "1918-05-20", "habitat": "Clay soil-hillside.", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "Michigan", "county": "Washtenaw", "municipality": "", "locality": "", "decimalLatitude": "42.292178", "decimalLongitude": "-83.726758", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}