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": ""}
    united states T![   -83.0514 Iug   "(2ND COLLECTIN)" M,I>   NBw. 1904-08-23    detroit    , y; POACEAE   6AM ECHINOCHLOA   walteri OQ  michigan =S1      CX_ poales     D-=f echinochloa walteri 
{"catalogNumber": "", "order": "Poales", "family": "Poaceae", "scientificName": "Echinochloa walteri", "scientificNameAuthorship": "", "genus": "Echinochloa", "subgenus": "", "specificEpithet": "walteri", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "", "verbatimEventDate": "1904-08-23", "habitat": "", "occurrenceRemarks": "\"(2nd collection)\"", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "", "municipality": "", "locality": "Detroit", "decimalLatitude": "", "decimalLongitude": "-83.0514", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}