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": ""}
  i4e3p carex mrsh center. University of Michigan Botanical Gardens, Dixboro Site, 4.5 mi northeast of Ann Arbor -0      42.300243 -1Y$P   B+2 bromus Washtenaw U    :r 1959-06-16   ~lR 306 poales r  james e. perley u  wUZ Bromus commutatus   -83.662835 4O9fi   `Ek  MICHIGAN   @  commutatus   yo 1475352  
{"catalogNumber": "1475352", "order": "Poales", "family": "", "scientificName": "Bromus commutatus", "scientificNameAuthorship": "", "genus": "Bromus", "subgenus": "", "specificEpithet": "commutatus", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "James E. Perley", "recordNumber": "306", "verbatimEventDate": "1959-06-16", "habitat": "Carex marsh center.", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "Michigan", "county": "Washtenaw", "municipality": "", "locality": "University of Michigan Botanical Gardens, Dixboro Site, 4.5 mi northeast of Ann Arbor", "decimalLatitude": "42.300243", "decimalLongitude": "-83.662835", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}