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": ""}
 4693 O&   leersia  ^     (l.) sw. rV+;   1G michigan United States L49nb    1230643 n;kC    z edward g. voss POACEAE [Yd,j  Poales `PJ   OLIVER A. FARWELL j   oryzides ep   P` macomb  @o LEERSIA ORYZOIDES  s5 1917-09-23  tacoma, mu    
{"catalogNumber": "1230643", "order": "Poales", "family": "Poaceae", "scientificName": "Leersia oryzoides", "scientificNameAuthorship": "(L.) Sw.", "genus": "Leersia", "subgenus": "", "specificEpithet": "oryzoides", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "Edward G. Voss", "recordedBy": "Oliver A. Farwell", "recordNumber": "4693", "verbatimEventDate": "1917-09-23", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Macomb", "municipality": "", "locality": "Tacoma,", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}