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": ""}
 iMY6; Poaceae     BROMUS w  2356 x??S  united states 1AYm   1938-07-26 It   rigidus gGd.   LNrA? CONTACT UM HERBARIUM     1407356    BROMUS DIANDRUS VAR. RIGIDUS Md <        PG_ diandrus   
{"catalogNumber": "1407356", "order": "", "family": "Poaceae", "scientificName": "Bromus diandrus var. rigidus", "scientificNameAuthorship": "", "genus": "Bromus", "subgenus": "", "specificEpithet": "diandrus", "verbatimTaxonRank": "", "infraspecificEpithet": "rigidus", "identifiedBy": "", "recordedBy": "", "recordNumber": "2356", "verbatimEventDate": "1938-07-26", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "", "county": "", "municipality": "", "locality": "Contact UM Herbarium", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}