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": ""}
  4P 1479401   -86.50335 M    ie- 356  Y:EB Eragrostis  n 44â° 01.989', w 86â° 30.201'  _ZMR     #O 2010-08-29           : Eragrostis spectabilis DAVID C. DISTER k.m   hI MICHIGAN United States k1Xg   
{"catalogNumber": "1479401", "order": "", "family": "", "scientificName": "Eragrostis spectabilis", "scientificNameAuthorship": "", "genus": "Eragrostis", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "David C. Dister", "recordNumber": "356", "verbatimEventDate": "2010-08-29", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "-86.50335", "verbatimCoordinates": "N 44\u00c2\u00b0 01.989', W 86\u00c2\u00b0 30.201'", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}