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": ""}
 0  m. johnston & j. crutchfield  (kuntze) b.w.van ee & p.e.berry uO L  croton heptalon  Y@6   <j 1 1960-09-5    k% N Loreto    I[i HEPTALON DISTURBED PRAIRE ON SANDY LOAM V<3    jXx6  Mexico  ,D EUPHORBIACEAE   1159378 Yg  COMMON WEEDS. ANNUAL D2e^    Tamaulipas aPWd  Croton mh     @ nHj 5547 P. E. Berry H5X 
{"catalogNumber": "1159378", "order": "", "family": "Euphorbiaceae", "scientificName": "Croton heptalon", "scientificNameAuthorship": "(Kuntze) B.W.van Ee & P.E.Berry", "genus": "Croton", "subgenus": "", "specificEpithet": "heptalon", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "P. E. Berry", "recordedBy": "M. Johnston & J. Crutchfield", "recordNumber": "5547", "verbatimEventDate": "1960-09-15", "habitat": "Disturbed praire on sandy loam", "occurrenceRemarks": "Common weeds. Annual", "associatedTaxa": "", "country": "Mexico", "stateProvince": "Tamaulipas", "county": "", "municipality": "", "locality": "Loreto", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}