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": ""}
 ( u@ CONTACT UM HERBARIUM   tristachya avenacea r-2t  Poales 3P5X)   SCRIBN. & MERR.  yn T      =? H 1993-11-08  l avenacea   jK7E_ j. calzada & l. rico a.  -;>f J. SÃ¡NCHEZ-KEN       m*$67 TRISTACHYA mekico $.p   I|. H Poaceae 18829 W    +eak 1131692 
{"catalogNumber": "1131692", "order": "Poales", "family": "Poaceae", "scientificName": "Tristachya avenacea", "scientificNameAuthorship": "Scribn. & Merr.", "genus": "Tristachya", "subgenus": "", "specificEpithet": "avenacea", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "J. S\u00c3\u00a1nchez-Ken", "recordedBy": "J. Calzada & L. Rico A.", "recordNumber": "18829", "verbatimEventDate": "1993-11-08", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Mexico", "stateProvince": "", "county": "", "municipality": "", "locality": "Contact UM Herbarium", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}