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": ""}
    yN OAXACA MEXICO u      P obtusifolia     GD 772   O fJB (l.) h. s. irwin & barneby   Bp ROBERT MEILL KING      16.4419 [i_  -95.0156 LuKP~  senna obtusifolia $   kc 1958-07-26 senna Z(tc   NOT COMMON, GROWING IN SANDY LOAM IN OPEN SUN 3Zn  
{"catalogNumber": "", "order": "", "family": "", "scientificName": "Senna obtusifolia", "scientificNameAuthorship": "(L.) H. S. Irwin & Barneby", "genus": "Senna", "subgenus": "", "specificEpithet": "obtusifolia", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Robert Merill King", "recordNumber": "772", "verbatimEventDate": "1958-07-26", "habitat": "Not common, growing in sandy loam in open sun", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Mexico", "stateProvince": "Oaxaca", "county": "", "municipality": "", "locality": "", "decimalLatitude": "16.4419", "decimalLongitude": "-95.0156", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}