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": ""}
 ;AM h mexico    . I Cyperus  1967-07-30 JZJ  181 s  -98.7316 YfgMk   RUIZ & PAV. D20TG     J. FLORES CRESP.O       c Cyperus niger  18.891 TH#      G.C. Tucker p%uR3    niger 1 e 
{"catalogNumber": "", "order": "", "family": "", "scientificName": "Cyperus niger", "scientificNameAuthorship": "Ruiz & Pav.", "genus": "Cyperus", "subgenus": "", "specificEpithet": "niger", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "G.C. Tucker", "recordedBy": "J. Flores Crespo", "recordNumber": "181", "verbatimEventDate": "1967-07-30", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Mexico", "stateProvince": "", "county": "", "municipality": "", "locality": "", "decimalLatitude": "18.891", "decimalLongitude": "-98.7316", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}