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": ""}
199-05-19 m      w pungens 6343 _U w    fPMAm Thicket  1Jl (TORR.) ROMASCH.  t61w |239441  ARENAC ~f%,    <oK31 44.05149   United States MiB_   UUM* piptatheropsis pungens -83.58173 _Y    4S5l Poales  EDWARD G. VOSS .| Q     XV MICHIGAN  POACEAE hUB= 
{"catalogNumber": "1239441", "order": "Poales", "family": "Poaceae", "scientificName": "Piptatheropsis pungens", "scientificNameAuthorship": "(Torr.) Romasch.", "genus": "", "subgenus": "", "specificEpithet": "pungens", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "Edward G. Voss", "recordedBy": "", "recordNumber": "6343", "verbatimEventDate": "1929-05-19", "habitat": "Thicket", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Arenac", "municipality": "", "locality": "", "decimalLatitude": "44.05149", "decimalLongitude": "-83.58173", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}