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": ""}
Flowers white. ?8* r   P4s CARYOPHYLLACEAE 2014-07-16 cwCh^      -87.8029 -`o        9a 1480917 47.4708 wo      `R^] STELLARIA GRAMINEA  7Q caryophyllales    Beverly S. Walters We   united states 3=   VKA _ 1501   
{"catalogNumber": "1480917", "order": "Caryophyllales", "family": "Caryophyllaceae", "scientificName": "Stellaria graminea", "scientificNameAuthorship": "", "genus": "", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Beverly S. Walters", "recordNumber": "1501", "verbatimEventDate": "2014-07-16", "habitat": "", "occurrenceRemarks": "Flowers white.", "associatedTaxa": "", "country": "United States", "stateProvince": "", "county": "", "municipality": "", "locality": "", "decimalLatitude": "47.4708", "decimalLongitude": "-87.8029", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}