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": ""}
  ?a s NT EVIDENT myrtales        + North Carolina GRPM 40617 J5   new hanover w     Onagraceae 0%     25,  LUDWIGIA GRANDIFLORA S.N. W3I   1897-07-06 Q-B      g9 ludwigia     AwAmM shallow water along the river 1508877 `<4    grandiflora K 
{"catalogNumber": "1508877", "order": "Myrtales", "family": "Onagraceae", "scientificName": "Ludwigia grandiflora", "scientificNameAuthorship": "", "genus": "Ludwigia", "subgenus": "", "specificEpithet": "grandiflora", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Not evident", "recordNumber": "s.n.", "verbatimEventDate": "1897-07-06", "habitat": "Shallow water along the river", "occurrenceRemarks": "GRPM 40617", "associatedTaxa": "", "country": "", "stateProvince": "North Carolina", "county": "New Hanover", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}