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": ""}
   eP United States L. E  1514877 r9G   S  Mystery Valley Karst Preserve, central valley.  WW ROBERT E. PRESTON    Afmz Fabaceae  Ze3Dx Medicago      $YQ  MICHIGAN   8xi. Medicago sativa   32v ANTON A. REZNICEK   2] FABALES 2012-08-24 Tgf    KG@ presque isle    
{"catalogNumber": "1514877", "order": "Fabales", "family": "Fabaceae", "scientificName": "Medicago sativa", "scientificNameAuthorship": "L.", "genus": "Medicago", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "Anton A. Reznicek", "recordedBy": "Robert E. Preston", "recordNumber": "", "verbatimEventDate": "2012-08-24", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Presque Isle", "municipality": "", "locality": "Mystery Valley Karst Preserve, central valley.", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}