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": ""}
 r7&_ r.r. dreisbach United States 4    sanguinalis w   ]a,^J ONE MILE SOUTH OF OWOSSO      Poales  Q Shiawasee   :UF Poac3ae Michigan Gh)M   (l.) scop. Sgy   K+   digitaria sanguinalis    o M^x 5449     Z  1927-09-11  [?K] 1216509 DIGITARIA L      dBG5 -84.17664
{"catalogNumber": "1216509", "order": "Poales", "family": "Poaceae", "scientificName": "Digitaria sanguinalis", "scientificNameAuthorship": "(L.) Scop.", "genus": "Digitaria", "subgenus": "", "specificEpithet": "sanguinalis", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "R.R. Dreisbach", "recordNumber": "5449", "verbatimEventDate": "1927-09-11", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Shiawassee", "municipality": "", "locality": "One mile South of Owosso", "decimalLatitude": "", "decimalLongitude": "-84.17664", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}