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": ""}
   vJ=_^ POACEAE   @bP  1929-07-18      megathyrsus maximus 52H   7  Jonesvlle.    -121.4661111 L   n0b= United lStates   ~eB poales     (Jacq.) B.K.Simon & S.W.L.Jacobs *qp+     
{"catalogNumber": "", "order": "Poales", "family": "Poaceae", "scientificName": "Megathyrsus maximus", "scientificNameAuthorship": "(Jacq.) B.K.Simon & S.W.L.Jacobs", "genus": "", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "", "verbatimEventDate": "1929-07-18", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "", "county": "", "municipality": "", "locality": "Jonesville.", "decimalLatitude": "", "decimalLongitude": "-121.4661111", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}