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": ""}
 $ 2004-08-16 croton texensis B?     mexico  eGmo    oak woodland 4      0 K  sonora  O-20Â°10'04"N, 111Â°01'31"W   1661079  Y?$-     u( LOCALLY UNCOMMON DIOECIOUS ANNUAL SANDYROADSIDE; FLOWERS WHITE   (klotzsch) muell.-arg. o7 tI     20.1677778   V ,: TEXENSIS  
{"catalogNumber": "1661079", "order": "", "family": "", "scientificName": "Croton texensis", "scientificNameAuthorship": "(Klotzsch) Muell.-Arg.", "genus": "", "subgenus": "", "specificEpithet": "texensis", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "", "verbatimEventDate": "2004-08-16", "habitat": "Oak woodland", "occurrenceRemarks": "Locally uncommon dioecious annual sandy roadside; flowers white", "associatedTaxa": "", "country": "Mexico", "stateProvince": "Sonora", "county": "", "municipality": "", "locality": "", "decimalLatitude": "20.1677778", "decimalLongitude": "", "verbatimCoordinates": "20\u00c2\u00b010'04\"N, 111\u00c2\u00b001'31\"W", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}