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": ""}
   1~6 4614B  s m.h. mayfield ARROYO THROUGH LIMESTONE HILLS .]=T   [:mI Michx. 1161529 sdvBW         DENTATA Fvr#1     Euphorbiaceae uM  mexico T8   Jnp @ EUPHORBIA DENTATA   h malpighiales 549 Qva    e NUEVO 1EON Euphorbia l^>j 
{"catalogNumber": "1161529", "order": "Malpighiales", "family": "Euphorbiaceae", "scientificName": "Euphorbia dentata", "scientificNameAuthorship": "Michx.", "genus": "Euphorbia", "subgenus": "", "specificEpithet": "dentata", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "M.H. Mayfield", "recordedBy": "", "recordNumber": "4614B", "verbatimEventDate": "", "habitat": "arroyo through limestone hills", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Mexico", "stateProvince": "Nuevo Leon", "county": "", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "549", "maximumElevationInMeters": ""}