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": ""}
  YY Mark H. Ma/yfield 1971-11-20 sFK   EUPHORBIACEAE 7sPk   Euphorbia heterophylla  m      640KU malpighiales     l. VO   Eastern Sanibel Island o1)   a garden weed  ^8  W.C. Brumbach u@ Sg  UNITED STATES J-  heterophylla  7FX8  LEE M `z   g 7742    florida  1248550 CX  PLANTS WEAK--BRACTS PALE AT BASE; FLOWERS INCONSPICUOUS   
{"catalogNumber": "1248550", "order": "Malpighiales", "family": "Euphorbiaceae", "scientificName": "Euphorbia heterophylla", "scientificNameAuthorship": "L.", "genus": "", "subgenus": "", "specificEpithet": "heterophylla", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "Mark H. Mayfield", "recordedBy": "W.C. Brumbach", "recordNumber": "7742", "verbatimEventDate": "1971-11-20", "habitat": "A garden weed", "occurrenceRemarks": "Plants weak--bracts pale at base; flowers inconspicuous", "associatedTaxa": "", "country": "United States", "stateProvince": "Florida", "county": "Lee", "municipality": "", "locality": "Eastern Sanibel Island", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}