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": ""}
30768 ][U4  FAGACEAE q:x   JERZY RZEDOWSCKI xrb   n  1260029  1973-06-17  vw    m NEXICO      J. Espinosa u|Vy3   M.MARTENS & GALEOTTI ]<P?H       ~M+t contact um herbarium     laurina p  8   
{"catalogNumber": "1260029", "order": "", "family": "Fagaceae", "scientificName": "", "scientificNameAuthorship": "M.Martens & Galeotti", "genus": "", "subgenus": "", "specificEpithet": "laurina", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "J. Espinosa", "recordedBy": "Jerzy Rzedowski", "recordNumber": "30768", "verbatimEventDate": "1973-06-17", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Mexico", "stateProvince": "", "county": "", "municipality": "", "locality": "Contact UM Herbarium", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}