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": ""}
betula pumila ch_`@   $yD8~ -84.236508   OIN7@ BETULACEAE several shurbs seen, open wet sand field. zJX  FAGALES  V=GV     ltKpW united states 1349570 O    pumila O    08 1984-08-27  BETULA t:      43.977884 z    along m-61. _3SH  michigan 3O<H-   6gKKz 1488
{"catalogNumber": "1349570", "order": "Fagales", "family": "Betulaceae", "scientificName": "Betula pumila", "scientificNameAuthorship": "", "genus": "Betula", "subgenus": "", "specificEpithet": "pumila", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "1488", "verbatimEventDate": "1984-08-27", "habitat": "Several shurbs seen, open wet sandy field.", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "", "municipality": "", "locality": "Along M-61.", "decimalLatitude": "43.977884", "decimalLongitude": "-84.236508", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}