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": ""}
 RXJ 8546   t poaceae      4? L. H. Shinners TEXAS 8o03b     hr contact um herbarium   dallas )l  1946-05-26 4J? W   Poales Y  1425664 !*yh    /DsR% (L.) L.  [bc(i TRIPSACUM DACTYLOIDES   tripsacum `    qiJ dactyloides United States 5 
{"catalogNumber": "1425664", "order": "Poales", "family": "Poaceae", "scientificName": "Tripsacum dactyloides", "scientificNameAuthorship": "(L.) L.", "genus": "Tripsacum", "subgenus": "", "specificEpithet": "dactyloides", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "L. H. Shinners", "recordNumber": "8546", "verbatimEventDate": "1946-05-26", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Texas", "county": "Dallas", "municipality": "", "locality": "Contact UM Herbarium", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}