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": ""}
united states ~x1E+   WASHTENAW ?+|  BERCHTOLDII 0]vu!  VAR~. @    Potamogeton J.    -83.96633 G   IN 1 1/2 FT. OF WATER /Ij   v 1280145  a 4j> berchtoldii MICHIGAN w?wE  7761 REwx2  Potamogeton berchtoldii var. berchtoldii (   <RMb [stipules apparently not connate. p. berchtoldii or hybrid?] [probably p. pusillus var. tenvissimus (rrh73)] carl o. grassl %[D>8   )%Wvy alismatales    ll 1937-06-12  3>(7h potamogetonaceae 42.42256 I+;i   
{"catalogNumber": "1280145", "order": "Alismatales", "family": "Potamogetonaceae", "scientificName": "Potamogeton berchtoldii var. berchtoldii", "scientificNameAuthorship": "", "genus": "Potamogeton", "subgenus": "", "specificEpithet": "berchtoldii", "verbatimTaxonRank": "var.", "infraspecificEpithet": "berchtoldii", "identifiedBy": "", "recordedBy": "Carl O. Grassl", "recordNumber": "7761", "verbatimEventDate": "1937-06-12", "habitat": "In 1 1/2 ft. of water", "occurrenceRemarks": "[Stipules apparently not connate. P. berchtoldii or hybrid?] [probably P. pusillus var. tenuissimus (RRH73)]", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Washtenaw", "municipality": "", "locality": "", "decimalLatitude": "42.42256", "decimalLongitude": "-83.96633", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}