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": ""}
 1471635 e      MICHIGAN 2    _5e (L.) AMBROSI   UNITED STATES T e R    ;5_LA CHENOPODIUM     tl6RW 15340 C4. 3/4 MI. S OF SHINGLETON. u 6F     caryophyllales BGTYH    -86.480046 Di  
{"catalogNumber": "1471635", "order": "Caryophyllales", "family": "", "scientificName": "", "scientificNameAuthorship": "(L.) Ambrosi", "genus": "Chenopodium", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "15340", "verbatimEventDate": "", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "", "municipality": "", "locality": "ca. 3/4 mi. S of Shingleton.", "decimalLatitude": "", "decimalLongitude": "-86.480046", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}