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": ""}
  , H W Michigan Submerged in the lake mkn((    +?U -89.16835    |j ian shackleford   y&! GOGEBIC   K.4  710  tl, haloragaceae  MICHX. g   myriophyllum heterophyllum + 6m&   b United States  heterophyllum Jt  ANTON A. REZNICEK n@~2     2009-06-18 VefF    
{"catalogNumber": "", "order": "", "family": "Haloragaceae", "scientificName": "Myriophyllum heterophyllum", "scientificNameAuthorship": "Michx.", "genus": "", "subgenus": "", "specificEpithet": "heterophyllum", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "Anton A. Reznicek", "recordedBy": "Ian Shackleford", "recordNumber": "710", "verbatimEventDate": "2009-06-18", "habitat": "Submerged in the lake", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Gogebic", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "-89.16835", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}