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": ""}
 538 P<+U  "associes: cirsium, panicum capillare, ambrosia artemisiifolia, asclepias syriaca, polygonumpersicaria." /   boraginles 8cM      MICHIGAN      k@f(6 |942-08-<03   LIVINGSTON _  .   (Retz.) Dumort.  (           hW/ edwin s. george reserve: 3 mi. west pinckney grid m-28. firebreak across marsh.   -f 42.456686
{"catalogNumber": "", "order": "Boraginales", "family": "", "scientificName": "", "scientificNameAuthorship": "(Retz.) Dumort.", "genus": "", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "538", "verbatimEventDate": "1942-08-03", "habitat": "", "occurrenceRemarks": "\"Associes: Cirsium, Panicum capillare, Ambrosia artemisiifolia, Asclepias syriaca, Polygonum persicaria.\"", "associatedTaxa": "", "country": "", "stateProvince": "Michigan", "county": "Livingston", "municipality": "", "locality": "Edwin S. George Reserve: 3 mi. west Pinckney Grid M-28. Firebreak across marsh.", "decimalLatitude": "42.456686", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}