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": ""}
  1900-02-12  s##   Fabales  ?r4~     contact um herbarium xIO!      n*n&D DESMODUM CANUM     A. ARTHUR HELLER /m   ?p DESMODIUM   1166439 ywnO    Q canum   =37q fabaceae schinz & thell. @G   F2X&T PUERTO RICO
{"catalogNumber": "1166439", "order": "Fabales", "family": "Fabaceae", "scientificName": "Desmodium canum", "scientificNameAuthorship": "Schinz & Thell.", "genus": "Desmodium", "subgenus": "", "specificEpithet": "canum", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "A. Arthur Heller", "recordNumber": "", "verbatimEventDate": "1900-02-12", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Puerto Rico", "stateProvince": "", "county": "", "municipality": "", "locality": "Contact UM Herbarium", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}