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": ""}
tephrosanthos F     STEPHEN D. KOCH Y M. F. DENTON /      498 DVD   SED FROM. FLAT, GRAZE FIELD, %,U      mexico GB    1967 Q     9XZ POALES   ERAGROSTIS TEPHROSANTHOS 66z!  
{"catalogNumber": "", "order": "Poales", "family": "", "scientificName": "Eragrostis tephrosanthos", "scientificNameAuthorship": "", "genus": "", "subgenus": "", "specificEpithet": "tephrosanthos", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "Stephen D. Koch y M. F. Denton", "recordedBy": "", "recordNumber": "498", "verbatimEventDate": "1967", "habitat": "Seed from. Flat, grazed field,", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Mexico", "stateProvince": "", "county": "", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}