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": ""}
     19.5278 $     a xyris  mexicana d.   Xyris mexicana xz    VEGETACIÃ³N ACUÃ¡TICA z,  1997-08-30  2   G. CALDERÃ³N DE RZEDOWSKI aM      1139186 QX   t*^n Poa les   
{"catalogNumber": "1139186", "order": "Poales", "family": "", "scientificName": "Xyris mexicana", "scientificNameAuthorship": "", "genus": "Xyris", "subgenus": "", "specificEpithet": "mexicana", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "G. Calder\u00c3\u00b3n de Rzedowski", "recordedBy": "", "recordNumber": "", "verbatimEventDate": "1997-08-30", "habitat": "Vegetaci\u00c3\u00b3n acu\u00c3\u00a1tica", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "", "county": "", "municipality": "", "locality": "", "decimalLatitude": "19.5278", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}