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": ""}
42.270872 n;xh    SEROTINA DU -y   gb s.3n.    z6, O EHRH.   .+ 1  -83.726329  3DW) ANN ARBOR WASHTENAW 9bbm   & Rosales  Prunus serotina  w5    ds$8 1491620  Q, United States    l1a,q [SPECIMEN IN LEWIS FOOTE HERBARIUM, P. 28]   |`W Prunus ROSACEAE L4-*   Lewi E. Foote 3   ^$?A 1862-05-31  J3 michigan
{"catalogNumber": "1491620", "order": "Rosales", "family": "Rosaceae", "scientificName": "Prunus serotina", "scientificNameAuthorship": "Ehrh.", "genus": "Prunus", "subgenus": "", "specificEpithet": "serotina", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Lewis E. Foote", "recordNumber": "s.n.", "verbatimEventDate": "1862-05-31", "habitat": "", "occurrenceRemarks": "[Specimen in Lewis Foote herbarium, p. 28]", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Washtenaw", "municipality": "", "locality": "Ann Arbor", "decimalLatitude": "42.270872", "decimalLongitude": "-83.726329", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}