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": ""}
 YM  1931-08-23 panicum M9     s <3& 1002   +; UNITED STATES amarum w67  worcester JtzmI    : 1418593  B^J!k Maryland  ELL. 8  panicum amarum w      poaceae          POAXLES .^ H   [YzwD paul redmond
{"catalogNumber": "1418593", "order": "Poales", "family": "Poaceae", "scientificName": "Panicum amarum", "scientificNameAuthorship": "Ell.", "genus": "Panicum", "subgenus": "", "specificEpithet": "amarum", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Paul Redmond", "recordNumber": "1002", "verbatimEventDate": "1931-08-23", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Maryland", "county": "Worcester", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}