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": ""}
 @  Don Henson   nw 1/4 sw 1/4 ne 1/4 sec 23 t42n-r16w D  arborea S8/pW   t u` 1463356 52 =zW6w  rosales h  [SUMMIT OF OVAR SPARSELYPUBESCENT T BASE OF STYLE = HYBRID?] ;EI,  small 3-4 foot tree along the roadside just outside of birch and aspen, leaves closed at anthesis and less than half grown. i e    `OV Amelanchier arborea  76 ROSACEAE  amelanchier P(8   1,o sch0olcraft -86.271962 x-  UNITEO STATES Li  46.019483 %f?R    _ W 1971-05-27   <p+kL ?(michx. f.) fernald  michigan /E=B;   NW 1/4 SW 1/4 NE 1/4 Sec 23 T42N-R16W 8&8Cs 
{"catalogNumber": "1463356", "order": "Rosales", "family": "Rosaceae", "scientificName": "Amelanchier arborea", "scientificNameAuthorship": "(Michx. f.) Fernald", "genus": "Amelanchier", "subgenus": "", "specificEpithet": "arborea", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Don Henson", "recordNumber": "52", "verbatimEventDate": "1971-05-27", "habitat": "Small 3-4 foot tree along the roadside just outside of birch and aspen, leaves closed at anthesis and less than half grown.", "occurrenceRemarks": "[Summit of ovary sparsely pubescent at base of style = hybrid?]", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Schoolcraft", "municipality": "", "locality": "NW 1/4 SW 1/4 NE 1/4 Sec 23 T42N-R16W", "decimalLatitude": "46.019483", "decimalLongitude": "-86.271962", "verbatimCoordinates": "NW 1/4 SW 1/4 NE 1/4 Sec 23 T42N-R16W", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}