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": ""}
   ~,~O "PETALS YELLOW, LEAVES VERY FLESHY AND RED ON MARGIN. ASSOC.: MOLLUGO VERTICILLATA, ERAGROSTIS PECTINACEA, PANICUM CAPILLARE, AMARANTHUS POWELLII" "T25N, R04W, SEC. 7 SW1/4 SW1/4"             vTu PORTULACA OLERACEA       elaine m. chittenden =V   OoL 1992-09-14     g Portulaca 
{"catalogNumber": "", "order": "", "family": "", "scientificName": "Portulaca oleracea", "scientificNameAuthorship": "", "genus": "Portulaca", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Elaine M. Chittenden", "recordNumber": "", "verbatimEventDate": "1992-09-14", "habitat": "", "occurrenceRemarks": "\"Petals yellow, leaves very fleshy and red on margin. Assoc.: Mollugo verticillata, Eragrostis pectinacea, Panicum capillare, Amaranthus powellii\" \"T25N, R04W, Sec. 7 SW1/4 SW1/4\"", "associatedTaxa": "", "country": "", "stateProvince": "", "county": "", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}