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": ""}
1420516  H/=m    , ontario   ~  Poaceae pratense Ab*  Canada a Uo^    + ~ Beardmore, Summers Twp   6(/  L.   PHLEUM PRATENSE Q&S Z   1Dny 22872  CU 1983-08-01  POALES +WF          .5d< THUNDER BAY  
{"catalogNumber": "1420516", "order": "Poales", "family": "Poaceae", "scientificName": "Phleum pratense", "scientificNameAuthorship": "L.", "genus": "", "subgenus": "", "specificEpithet": "pratense", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "22872", "verbatimEventDate": "1983-08-01", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Canada", "stateProvince": "Ontario", "county": "Thunder Bay", "municipality": "", "locality": "Beardmore, Summers Twp", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}