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": ""}
  medicago &>>x    M UNITED STATES "Fls. Bluish-purple." s   sativa 2?o   @:0 GLADWIN   Fabales K   F 1346823   p 1957-06-27  crossroads !between w edge secs 7&18, sage twp. ca 7.5 mi. nw of gladwin.  8;    :  -84.593137       j~-5 l.  k occassionalon sides of sandy gravel roads.  
{"catalogNumber": "1346823", "order": "Fabales", "family": "", "scientificName": "", "scientificNameAuthorship": "L.", "genus": "Medicago", "subgenus": "", "specificEpithet": "sativa", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "", "verbatimEventDate": "1957-06-27", "habitat": "Occassional on sides of sandy gravel roads.", "occurrenceRemarks": "\"Fls. Bluish-purple.\"", "associatedTaxa": "", "country": "United States", "stateProvince": "", "county": "Gladwin", "municipality": "", "locality": "crossroads between W edge Secs 7&18, Sage Twp. Ca 7.5 mi. NW of Gladwin.", "decimalLatitude": "", "decimalLongitude": "-84.593137", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}