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": ""}
  poaceae 6   bradford s. slaughter vg   ZOy flavus  R-x TRIDENS   (l.) hitchc. 4|.r9  41.87555 ?      5n 1517009     u~ anton a. revznicek   -83.693687 0IG   along two-track in sandy old field with prairie elements. associates: achillea millefolium, rubus flagellaris, schizaghyrium scoparium, solidago rugosa, sorghastrum nutans, syphyotrichum pilosum [hg~;  1529 )kO~   (=jWz tridens flavus 2015-09-15 WK-   MONROE =Ok 
{"catalogNumber": "1517009", "order": "", "family": "Poaceae", "scientificName": "Tridens flavus", "scientificNameAuthorship": "(L.) Hitchc.", "genus": "Tridens", "subgenus": "", "specificEpithet": "flavus", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "Anton A. Reznicek", "recordedBy": "Bradford S. Slaughter", "recordNumber": "1529", "verbatimEventDate": "2015-09-15", "habitat": "Along two-track in sandy old field with prairie elements. Associates: Achillea millefolium, Rubus flagellaris, Schizachyrium scoparium, Solidago rugosa, Sorghastrum nutans, Symphyotrichum pilosum", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "", "county": "Monroe", "municipality": "", "locality": "", "decimalLatitude": "41.87555", "decimalLongitude": "-83.693687", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}