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": ""}
1755 pZ    __ 2002-04-15 M.H. MAYFIELD MdO   euphorbiac3ae ()IwI   t<o 1496182  d?l  -86.2355556  BLUFF OVER NORTH SIDE OF CUMBERLAND RIVER SOUTH OF HARTSVILLE AND EAST OF TN 141. CZ   MAYFIED ;K    EUPHORBIA Z      VI 3549  U euphorbia ouachitana   UNITED STATES c a  36.425 c eJ       OPEN SLOPES WITH BLUE ASH AND SHUMARD OAK. GROWING FROM TOP TO BOTTOM 0F SLOPE BUT UNCOMMsON.  u ouachitana Tennessee 4 
{"catalogNumber": "1496182", "order": "", "family": "Euphorbiaceae", "scientificName": "Euphorbia ouachitana", "scientificNameAuthorship": "Mayfield", "genus": "Euphorbia", "subgenus": "", "specificEpithet": "ouachitana", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "M.H. Mayfield", "recordNumber": "3549", "verbatimEventDate": "2002-04-15", "habitat": "Open slopes with blue ash and shumard oak. Growing from top to bottom of slope but uncommon.", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Tennessee", "county": "", "municipality": "", "locality": "Bluff over north side of Cumberland River south of Hartsville and east of TN 141.", "decimalLatitude": "36.425", "decimalLongitude": "-86.2355556", "verbatimCoordinates": "", "minimumElevationInMeters": "175", "maximumElevationInMeters": ""}