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": ""}
 croton heptalon WU@x9  1960-0<9-15 V:Y8E     Euphorbiaceae I       HEPTALON F4o        COMMON WEEDS. ANNUAL .)3MH     i*D Loreto    A _$y DISTURBED PRAIRE ON SANDY LOAM  G P. E. Berry
{"catalogNumber": "", "order": "", "family": "Euphorbiaceae", "scientificName": "Croton heptalon", "scientificNameAuthorship": "", "genus": "", "subgenus": "", "specificEpithet": "heptalon", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "P. E. Berry", "recordedBy": "", "recordNumber": "", "verbatimEventDate": "1960-09-15", "habitat": "Disturbed praire on sandy loam", "occurrenceRemarks": "Common weeds. Annual", "associatedTaxa": "", "country": "", "stateProvince": "", "county": "", "municipality": "", "locality": "Loreto", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}