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": ""}
   U l5 WASHTENAW  1476633 Ev   42.300243 4BF M   $&  matthaei botanical gardens. sandford hill.   sdk United States  ![wZ Sterile field.   fk GREENE    En -83.662835   ASTERALES 3 4x    C1B  s.n.   3l michigan antennari<a howellii ]=. (    p  howellii  1970-0-16 Goe 
{"catalogNumber": "1476633", "order": "Asterales", "family": "", "scientificName": "Antennaria howellii", "scientificNameAuthorship": "Greene", "genus": "", "subgenus": "", "specificEpithet": "howellii", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "s.n.", "verbatimEventDate": "1970-05-16", "habitat": "Sterile field.", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Washtenaw", "municipality": "", "locality": "Matthaei Botanical Gardens. Sandford Hill.", "decimalLatitude": "42.300243", "decimalLongitude": "-83.662835", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}