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": ""}
   4 Rjhododendron groenlandicum   @ny contact um herbariuhm george e. nichols SV        `R ERICALES  ;qn KATHLEEN A. KRON        GROENLANDICUM E/    ;2 [ RHODODENDRON  c 1915-07-24  = 141153     CANADA
{"catalogNumber": "1241153", "order": "Ericales", "family": "", "scientificName": "Rhododendron groenlandicum", "scientificNameAuthorship": "", "genus": "Rhododendron", "subgenus": "", "specificEpithet": "groenlandicum", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "Kathleen A. Kron", "recordedBy": "George E. Nichols", "recordNumber": "", "verbatimEventDate": "1915-07-24", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Canada", "stateProvince": "", "county": "", "municipality": "", "locality": "Contact UM Herbarium", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}