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": ""}
1457141      1939-07-04 ;a   X.4~ PURSH  V ABOUT LAT. 48Â° 45' NORTH, LONG. 86Â° 15' WEST malpighiales L^ 4@    1*_  salicaceae  d $ SLIX PLANIFOLIA    [q Thunder Bay planifolia s|wW          mV/:C 1578 SWAMP. Cmm5s   K Peninsula   Y Ontario     G! Canada  
{"catalogNumber": "1457141", "order": "Malpighiales", "family": "Salicaceae", "scientificName": "Salix planifolia", "scientificNameAuthorship": "Pursh", "genus": "", "subgenus": "", "specificEpithet": "planifolia", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "1578", "verbatimEventDate": "1939-07-04", "habitat": "Swamp.", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Canada", "stateProvince": "Ontario", "county": "Thunder Bay", "municipality": "", "locality": "Peninsula", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "about Lat. 48\u00c2\u00b0 45' North, Long. 86\u00c2\u00b0 15' West", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}