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": ""}
  J 1666266  Xu` 1877     no data provided on label of catalog no: 1666266   S> malpighiales  united states ~=_       euphorbiaceae  D rhomboidea   Y  GEOFFREY A. LEVIN     139 ACALYPHA  C   illinois ~yd    william wirt calkins SB!2m   49D Acalypha rhomboidea   3yb Cook RAF. wW g8  
{"catalogNumber": "1666266", "order": "Malpighiales", "family": "Euphorbiaceae", "scientificName": "Acalypha rhomboidea", "scientificNameAuthorship": "Raf.", "genus": "Acalypha", "subgenus": "", "specificEpithet": "rhomboidea", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "Geoffrey A. Levin", "recordedBy": "William Wirt Calkins", "recordNumber": "139", "verbatimEventDate": "1877", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Illinois", "county": "Cook", "municipality": "", "locality": "no data provided on label of catalog no: 1666266", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}