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": ""}
 Ivu ACORALES  w+tHT 1207510    s.n.    f`4w label says, "ex. herb. j. f. joor, m.d." who may or may not have collected this specimen  Acoraceae Wa2  CONTACT UM HERBARIUM &-   3 L.      y ACORUS United States 74a   [A.t LOUSIANA  6Lil 1874-05-11          6   acorus c4lamus CALAMUS  Rx   3cU~P NOT VIDENT 
{"catalogNumber": "1207510", "order": "Acorales", "family": "Acoraceae", "scientificName": "Acorus calamus", "scientificNameAuthorship": "L.", "genus": "Acorus", "subgenus": "", "specificEpithet": "calamus", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Not evident", "recordNumber": "s.n.", "verbatimEventDate": "1874-05-11", "habitat": "", "occurrenceRemarks": "Label says, \"Ex. Herb. J. F. Joor, M.D.\" who may or may not have collected this specimen", "associatedTaxa": "", "country": "United States", "stateProvince": "Louisiana", "county": "", "municipality": "", "locality": "Contact UM Herbarium", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}