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": ""}
 EB umited states  JU contact um herbarium  = tennessee   g?l poales  Echinochloa C#AG    z$g KNOX  ~  +G albert ruth Poaceae vvS3   COLONA  :    1411471 t ;   p  u (L.) Link   895-07 -CwFs    Echinochloa colona fB s     qZM s.n. 
{"catalogNumber": "1411471", "order": "Poales", "family": "Poaceae", "scientificName": "Echinochloa colona", "scientificNameAuthorship": "(L.) Link", "genus": "Echinochloa", "subgenus": "", "specificEpithet": "colona", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Albert Ruth", "recordNumber": "s.n.", "verbatimEventDate": "1895-07", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Tennessee", "county": "Knox", "municipality": "", "locality": "Contact UM Herbarium", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}