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": ""}
     3Z_k 1940-07-26 S. WHITE 9M2  3048 (!u  Poales x    Echinochloa colonum A (.   Mexico ;r;   OU.H -108.934            VOPDZ ECHWINOCHLOA  
{"catalogNumber": "", "order": "Poales", "family": "", "scientificName": "Echinochloa colonum", "scientificNameAuthorship": "", "genus": "Echinochloa", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "S. White", "recordNumber": "3048", "verbatimEventDate": "1940-07-26", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Mexico", "stateProvince": "", "county": "", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "-108.934", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}