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": ""}
   7 psilostachya   zb+ ASTERACEAE     m1~ asterales   VACANT LOTS. Z/   G3[RZ 8433 united states a   CHEBOYGAN, >  Nichi gan G>d~    1957-07-19 ?-     Ambrosia W  CHEBOYGAN Ml$R    #fy8v am8rosia psilostachya 1249726 7o  DC. G   WARREN H. 1WAGNER, JR. 3 
{"catalogNumber": "1249726", "order": "Asterales", "family": "Asteraceae", "scientificName": "Ambrosia psilostachya", "scientificNameAuthorship": "DC.", "genus": "Ambrosia", "subgenus": "", "specificEpithet": "psilostachya", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Warren H. Wagner, Jr.", "recordNumber": "8433", "verbatimEventDate": "1957-07-19", "habitat": "vacant lots.", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Cheboygan", "municipality": "", "locality": "Cheboygan,", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}