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": ""}
   LIME_STONE FOOTHILLS; BADLY OVERBROWSED AND OVER GRAZED FOOTHILL BRUSH d        :Cu ROADSIDE WEEDS croton     u 41 miles (or71 kilometers by the merkers) northeast of monterrey; 13 miles southwest of cerralvo 4346 [q                Nuevo Leon ~A Y   
{"catalogNumber": "", "order": "", "family": "", "scientificName": "", "scientificNameAuthorship": "", "genus": "Croton", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "4346", "verbatimEventDate": "", "habitat": "limestone foothills; badly overbrowsed and over grazed foothill brush", "occurrenceRemarks": "roadside weeds", "associatedTaxa": "", "country": "", "stateProvince": "Nuevo Leon", "county": "", "municipality": "", "locality": "41 miles (or 71 kilometers by the merkers) northeast of Monterrey; 13 miles southwest of Cerralvo", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}