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": ""}
 1934-09-24 Y=       haematoxylon brasiletto x=K :   v` IRA L. WIGGINS  ^h  mexico  -* -109.794   Karst. x    x[=r haematoxylon       P fabaceae    f*=u; 29.7197   4Com^ 1166931
{"catalogNumber": "1166931", "order": "", "family": "Fabaceae", "scientificName": "Haematoxylon brasiletto", "scientificNameAuthorship": "Karst.", "genus": "Haematoxylon", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Ira L. Wiggins", "recordNumber": "", "verbatimEventDate": "1934-09-24", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Mexico", "stateProvince": "", "county": "", "municipality": "", "locality": "", "decimalLatitude": "29.7197", "decimalLongitude": "-109.794", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}