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": ""}
   b PRATENSE united sta7es G    <V POAL3S     Poaceae aTN  2706 1j(+  1938-06-17 q8K       : phleum pratense     > POWELL   K%g)6 KENTUCKY  L. t  Mary E. Wharton _1&i    near waltersville I Y   
{"catalogNumber": "", "order": "Poales", "family": "Poaceae", "scientificName": "Phleum pratense", "scientificNameAuthorship": "L.", "genus": "", "subgenus": "", "specificEpithet": "pratense", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Mary E. Wharton", "recordNumber": "2706", "verbatimEventDate": "1938-06-17", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Kentucky", "county": "Powell", "municipality": "", "locality": "Near Waltersville", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}