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": ""}
  sapindaceae 29N6        L y. l. vargas-rodriguez  sapindales f$   michoacan +z  MEXICANUM 3Y    negundo +Sz8d     r*r7b mekico  S SUBSP.  3j.!D jerzy rzedowski ACER NEGUNDO SUBSP. MEXICANU )Ddl#  Contact UM Her barium 3V  1964-07-20 0D9RF   x acer  fybP 18359  1176878 1:   $w (DC.) WESM.
{"catalogNumber": "1176878", "order": "Sapindales", "family": "Sapindaceae", "scientificName": "Acer negundo subsp. mexicanum", "scientificNameAuthorship": "(DC.) Wesm.", "genus": "Acer", "subgenus": "", "specificEpithet": "negundo", "verbatimTaxonRank": "subsp.", "infraspecificEpithet": "mexicanum", "identifiedBy": "Y. L. Vargas-Rodriguez", "recordedBy": "Jerzy Rzedowski", "recordNumber": "18359", "verbatimEventDate": "1964-07-20", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Mexico", "stateProvince": "Michoacan", "county": "", "municipality": "", "locality": "Contact UM Herbarium", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}