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": ""}
  G_o 1480068 (WILLD.) ROSTK. & W. L. E. SCHMIDT ar   ,tey -73.6959  pW douglass houghton   (Q antom a. reznicek New York  2 Q    G ALISMATALES HYDROC HARITACEAE 0j1k    g Xd united states  Z Y flexilis  TROY, RIVER HUDSON [COORDINATES ARE FOR THE RIVER SHORE AT THE 19TH ST. BRIDGE.] |FdUa    Najas [     najas flexilis Eg8J  [IN PACKET ON SHEET WITH IMAGE: ADDITIONAL APPARENTLY DUPLICATE COLLECTION FROM UNBOUND PAGES OF HOUGHTON BOOK MARKED EXCHANGE.] m[l     *E  4.7283 rensselaer 3b  1829-08 16   
{"catalogNumber": "1480068", "order": "Alismatales", "family": "Hydrocharitaceae", "scientificName": "Najas flexilis", "scientificNameAuthorship": "(Willd.) Rostk. & W. L. E. Schmidt", "genus": "Najas", "subgenus": "", "specificEpithet": "flexilis", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "Anton A. Reznicek", "recordedBy": "Douglass Houghton", "recordNumber": "", "verbatimEventDate": "1829-08", "habitat": "", "occurrenceRemarks": "[In packet on sheet with image: Additional apparently duplicate collection from unbound pages of Houghton book marked exchange.]", "associatedTaxa": "", "country": "United States", "stateProvince": "New York", "county": "Rensselaer", "municipality": "", "locality": "Troy, River Hudson [Coordinates are for the River shore at the 19th St. bridge.]", "decimalLatitude": "42.7283", "decimalLongitude": "-73.6959", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}