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": ""}
 42.288712 r  ANN ARBOR, N.E. OF HOSPITAL. fk]^   Carl O. Grassl .   f Fabales  $R8 MICHIGAN 1932-06-08 ):5    0XWcf Polygala   Tj low open ground.   J<C -83.726161   Y._ 1472807   l. b   kIHjh Washtenaw     POLYpGALA SENEGA R  united states f4    sv SENEGA
{"catalogNumber": "1472807", "order": "Fabales", "family": "", "scientificName": "Polygala senega", "scientificNameAuthorship": "L.", "genus": "Polygala", "subgenus": "", "specificEpithet": "senega", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Carl O. Grassl", "recordNumber": "", "verbatimEventDate": "1932-06-08", "habitat": "Low open ground.", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Washtenaw", "municipality": "", "locality": "Ann Arbor, N.E. of Hospital.", "decimalLatitude": "42.288712", "decimalLongitude": "-83.726161", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}