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": ""}
1510511 ZB0o    8XG w.r. carcr, mark h. mayfeld   K aBustrotexana austrotexana /%yO&          12504 p|o`|   zyh[ VAR.   7U euphorbia austrotekana var.austrotexana  J 1993-03-20  A ( . 29.2 W side of IH-37, ca. 500 ft. N ofmi. marker 124, 1.3 road mi. N of overpass at Priest Rd - Mathis Rd exit, Losoya 7.5' Quadrangle 0C#   %~+ -98.42  mQ UNITED STATES   bexar   
{"catalogNumber": "1510511", "order": "", "family": "", "scientificName": "Euphorbia austrotexana var. austrotexana", "scientificNameAuthorship": "", "genus": "", "subgenus": "", "specificEpithet": "austrotexana", "verbatimTaxonRank": "var.", "infraspecificEpithet": "austrotexana", "identifiedBy": "", "recordedBy": "W.R. Carr, Mark H. Mayfield", "recordNumber": "12504", "verbatimEventDate": "1993-03-20", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "", "county": "Bexar", "municipality": "", "locality": "W side of IH-37, ca. 500 ft. N of mi. marker 124, 1.3 road mi. N of overpass at Priest Rd - Mathis Rd exit, Losoya 7.5' Quadrangle", "decimalLatitude": "29.2", "decimalLongitude": "-98.42", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}