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": ""}
    Cecil Billington H    -86.187907 <h  salicaria  r     MI`CH WUD6951   & united states low ground /JD   f 7 l.   42.48965 b . c    Gc:< ALLEGAN     S.N.   7|8 myrtalses 8yaM5   < U<  1918-08-17 
{"catalogNumber": "", "order": "Myrtales", "family": "", "scientificName": "", "scientificNameAuthorship": "L.", "genus": "", "subgenus": "", "specificEpithet": "salicaria", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Cecil Billington", "recordNumber": "s.n.", "verbatimEventDate": "1918-08-17", "habitat": "low ground", "occurrenceRemarks": "MICH WUD6951", "associatedTaxa": "", "country": "United States", "stateProvince": "", "county": "Allegan", "municipality": "", "locality": "", "decimalLatitude": "42.648965", "decimalLongitude": "-86.187907", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}