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": ""}
U. MOLAU 20     6 mexico  Calceolaria mexigana ?qK*T   GUERRERO .   LM mexicana lamiales       1938-01-02 5%$B     K 11172   y GEO. B. HINTON   CALCEOLARIA 58W     calceolariaceae %5*   &:9A Benth.   5t CONTACT UM HERBARIUM
{"catalogNumber": "", "order": "Lamiales", "family": "Calceolariaceae", "scientificName": "Calceolaria mexicana", "scientificNameAuthorship": "Benth.", "genus": "Calceolaria", "subgenus": "", "specificEpithet": "mexicana", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "U. Molau", "recordedBy": "Geo. B. Hinton", "recordNumber": "11172", "verbatimEventDate": "1938-01-02", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Mexico", "stateProvince": "Guerrero", "county": "", "municipality": "", "locality": "Contact UM Herbarium", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}