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": ""}
pellston, by airport.     Chenopodium praericola t U2   0 EDWARD 6. VOSS   VD3 T 1356    E FKc caryophyllales  v pratericola  Scarce to occasional in R.R. ballast. . +<      MICHIGAN ]mr[   F Chenopodium  hj?o 45.56743  u] united states EMMET T       38 RYDB.
{"catalogNumber": "", "order": "Caryophyllales", "family": "", "scientificName": "Chenopodium pratericola", "scientificNameAuthorship": "Rydb.", "genus": "Chenopodium", "subgenus": "", "specificEpithet": "pratericola", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Edward G. Voss", "recordNumber": "1356", "verbatimEventDate": "", "habitat": "Scarce to occasional in R.R. ballast.", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Emmet", "municipality": "", "locality": "Pellston, by airport.", "decimalLatitude": "45.56743", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}