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": ""}
UNITED STATES &<_r        43.01271 .  1970-06-30 E:n    John Merkle G@    z -83.55688   e> 1333987 one of dominant trees f  acer saccharum :&2?   dT marshall SAPINDACEAE  jZ/    GENSEE +     F Anton A. Reznicek  Dy$ Sapindales  yi[ Michigan 
{"catalogNumber": "1333987", "order": "Sapindales", "family": "Sapindaceae", "scientificName": "Acer saccharum", "scientificNameAuthorship": "Marshall", "genus": "", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "Anton A. Reznicek", "recordedBy": "John Merkle", "recordNumber": "", "verbatimEventDate": "1970-06-30", "habitat": "", "occurrenceRemarks": "one of dominant trees", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Genesee", "municipality": "", "locality": "", "decimalLatitude": "43.01271", "decimalLongitude": "-83.55688", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}