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": ""}
 G4$g6 Cyperus niger zUL   H POALES    p N  7546 RUIZ & PAV.     0;6  Jalisco   @[ cyperus niger    mexico M9   CYPERACENAE |Fw,&     n@-pa 1976-12-15    -103.431  0zT&   3v   20.2837   
{"catalogNumber": "", "order": "Poales", "family": "Cyperaceae", "scientificName": "Cyperus niger", "scientificNameAuthorship": "Ruiz & Pav.", "genus": "Cyperus", "subgenus": "", "specificEpithet": "niger", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "7546", "verbatimEventDate": "1976-12-15", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Mexico", "stateProvince": "Jalisco", "county": "", "municipality": "", "locality": "", "decimalLatitude": "20.2837", "decimalLongitude": "-103.431", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}