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": ""}
  <y Canada  Yk0Z 1659772  8H3 Heteranthera dubia  *  (JACQ.) MACMILL.   [WQ pontederiaceae   ]ViU_ utm grid 812851 map 40 j/8d  ALAN WORMINGTON Agb q   v| commelinales  Essex 7 d0X    M HETERANTHERA  B 1985-07-18   dubia   ]   ;NV1b 12    ONTARIO  LIGHTHOUSE POINT (GOODREAU'S MARSH)  >4yl    
{"catalogNumber": "1659772", "order": "Commelinales", "family": "Pontederiaceae", "scientificName": "Heteranthera dubia", "scientificNameAuthorship": "(Jacq.) MacMill.", "genus": "Heteranthera", "subgenus": "", "specificEpithet": "dubia", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Alan Wormington", "recordNumber": "12", "verbatimEventDate": "1985-07-18", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Canada", "stateProvince": "Ontario", "county": "Essex", "municipality": "", "locality": "Lighthouse Point (Goodreau's Marsh)", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "UTM grid 812851 map 40 J/8d", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}