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": ""}
 42.2 Us    persicariRa =7b   T^g(M UNITED STATES  IV CARYOPHYLLALES carl o. grassl uHt  -83.95 /   fa MICHIGAN  zQq ^ FORMING A DENSE ZONE   1937-10-16         OU AMPHIBIA   washtenaw #:   v 7725    tyv]+ (L.) Delarbre At NW  corner of Pleasant Lake. 6  1463021 qp0O 
{"catalogNumber": "1463021", "order": "Caryophyllales", "family": "", "scientificName": "", "scientificNameAuthorship": "(L.) Delarbre", "genus": "Persicaria", "subgenus": "", "specificEpithet": "amphibia", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Carl O. Grassl", "recordNumber": "7725", "verbatimEventDate": "1937-10-16", "habitat": "Forming a dense zone", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Washtenaw", "municipality": "", "locality": "At NW corner of Pleasant Lake.", "decimalLatitude": "42.2", "decimalLongitude": "-83.95", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}