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": ""}
United States @S@+;      umbs sheet [umbs slheet: "railroad grade between pellston and van."] 15xL   300 !H  houghtoniana 4nTqD  NEAR G R & I TRACKS NORTH OF PELLSTON. ;xp`  torr. ex dewe g  CAREX HOUGHTONIAN4  fPo!   Vc[p LOIS S. EHLERS CYPERACEAE @Kn0;    (Ga`4 poales  Carex Z#N?  michigaIn J|  1323175  o T^      S;8 emmet   
{"catalogNumber": "1323175", "order": "Poales", "family": "Cyperaceae", "scientificName": "Carex houghtoniana", "scientificNameAuthorship": "Torr. ex Dewey", "genus": "Carex", "subgenus": "", "specificEpithet": "houghtoniana", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Lois S. Ehlers", "recordNumber": "300", "verbatimEventDate": "", "habitat": "", "occurrenceRemarks": "UMBS sheet [UMBS sheet: \"Railroad grade between Pellston and Van.\"]", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Emmet", "municipality": "", "locality": "Near G R & I tracks north of Pellston.", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}