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": ""}
   van buren Michigan  jjNP   - Xyridaceae     1483  7g! KEELER LAKE.  1970-08-10 %^IR.  difformis TXhnJ     y xyris diffris   = gary j. pierce  poales V    kYCI -86.137109   < united states  >sh< anton a. reznicek  Chapm. zD,      1484712 u   ! xyris 
{"catalogNumber": "1484712", "order": "Poales", "family": "Xyridaceae", "scientificName": "Xyris difformis", "scientificNameAuthorship": "Chapm.", "genus": "Xyris", "subgenus": "", "specificEpithet": "difformis", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "Anton A. Reznicek", "recordedBy": "Gary J. Pierce", "recordNumber": "1483", "verbatimEventDate": "1970-08-10", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Van Buren", "municipality": "", "locality": "Keeler Lake.", "decimalLatitude": "", "decimalLongitude": "-86.137109", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}