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": ""}
       SYMPHYOTRICHUM PILOSUM 8Yv    x united stats  Michigan i&Z   (willd.) g. l. nesom c;OW             w ! LOW FIELD    v 5 "WHITE FLOWERED, ONE SIDED RACEMES, ACUNINATE IMVOLUC SCALES. ROUGH STEM THRU OUT" [EX HERB. C. H. KAUFFMAN]
{"catalogNumber": "", "order": "", "family": "", "scientificName": "Symphyotrichum pilosum", "scientificNameAuthorship": "(Willd.) G. L. Nesom", "genus": "", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "", "verbatimEventDate": "", "habitat": "low field", "occurrenceRemarks": "\"White flowered, one sided racemes, acuminate involuc scales. rough stem thru out\" [ex herb. C. H. Kauffman]", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}