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": ""}
   UNITED STATES 2&   -HyV, 7935 NEES. +   ys* tenerum  POALES G M4w   1968-08-24 WUv   YJACKSON KJ~am     + C POACEAE Schizachyrium :+s+   ! schizachyrium tenerum       6 leroy h. harvey  #2 CONTACT UM HERBARIUM MISSISSIPPI e  
{"catalogNumber": "", "order": "Poales", "family": "Poaceae", "scientificName": "Schizachyrium tenerum", "scientificNameAuthorship": "Nees.", "genus": "Schizachyrium", "subgenus": "", "specificEpithet": "tenerum", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "LeRoy H. Harvey", "recordNumber": "7935", "verbatimEventDate": "1968-08-24", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Mississippi", "county": "Jackson", "municipality": "", "locality": "Contact UM Herbarium", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}