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": ""}
45.6 o   R I- IN CULTIVATED FIELD, ANDY SOIL [MICH]   =@  ASTEAACEAE  P6F9M erigeron philadelphicus      ln -84.711111      Ow AS7ERALES      q x  1253803     5 l. john h. ehlers .     413  
{"catalogNumber": "1253803", "order": "Asterales", "family": "Asteraceae", "scientificName": "Erigeron philadelphicus", "scientificNameAuthorship": "L.", "genus": "", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "John H. Ehlers", "recordNumber": "413", "verbatimEventDate": "", "habitat": "In cultivated field, sandy soil [MICH]", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "", "county": "", "municipality": "", "locality": "", "decimalLatitude": "45.6", "decimalLongitude": "-84.711111", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}