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": ""}
contact um herbarium RH    1930-10-13 B,`r   2bk$y  m.a. curtis    Poaceae sSl  incertus ~5   +3C f. s. blanton  L 1408993 poales zk     fdDn Florida  cenchrus T6 7X     6823 4jF91    ;s ?~ cenchrvs incertus   
{"catalogNumber": "1408993", "order": "Poales", "family": "Poaceae", "scientificName": "Cenchrus incertus", "scientificNameAuthorship": "M.A. Curtis", "genus": "Cenchrus", "subgenus": "", "specificEpithet": "incertus", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "F. S. Blanton", "recordNumber": "6823", "verbatimEventDate": "1930-10-13", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "Florida", "county": "", "municipality": "", "locality": "Contact UM Herbarium", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}