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": ""}
  s.n.   I+     upshur 3  William M. Pollock V!   4^]> west virginia   UNITED STATES r   PUBESCENS 2       c` GRPM 42453      U 1897L-07-08  .#87t tilia pubescens Aiton q8`  contact um herbarium  S   TsErC MALVALES  D TILIA  
{"catalogNumber": "", "order": "Malvales", "family": "", "scientificName": "Tilia pubescens", "scientificNameAuthorship": "Aiton", "genus": "Tilia", "subgenus": "", "specificEpithet": "pubescens", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "William M. Pollock", "recordNumber": "s.n.", "verbatimEventDate": "1897-07-08", "habitat": "", "occurrenceRemarks": "GRPM 42453", "associatedTaxa": "", "country": "United States", "stateProvince": "West Virginia", "county": "Upshur", "municipality": "", "locality": "Contact UM Herbarium", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}