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": ""}
 nUC var.  ay  79    ? h. kilpela BLACK LAKE ,  potamogeton $0 Pd  toliosus %     1939-07-12 POTAMOGETONACEAE Z     # alismatales 45.471767 ux     Qm FERN. depth ot water: 6" - 0 bottom: sand wC 1p   -84.274997 )rSd   Tg=&k UNITED STATES   K a 1280573   ( macellus   :0 = MICHIGAN 
{"catalogNumber": "1280573", "order": "Alismatales", "family": "Potamogetonaceae", "scientificName": "", "scientificNameAuthorship": "Fern.", "genus": "Potamogeton", "subgenus": "", "specificEpithet": "foliosus", "verbatimTaxonRank": "var.", "infraspecificEpithet": "macellus", "identifiedBy": "", "recordedBy": "H. Kilpela", "recordNumber": "79", "verbatimEventDate": "1939-07-12", "habitat": "Depth of Water: 6\" - 0 Bottom: Sand", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "", "municipality": "", "locality": "Black Lake", "decimalLatitude": "45.471767", "decimalLongitude": "-84.274997", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}