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": ""}
poaceae g     umQ-X echinochloa muricata       gravel-sand opening at side of woods road with gratiola neglecta, agrosits scabra, juncus brevicaudatus, scirpus cyerinus, carex scoparia, etc py          [ 556491     mt7bl minnesota    
{"catalogNumber": "1556491", "order": "", "family": "Poaceae", "scientificName": "Echinochloa muricata", "scientificNameAuthorship": "", "genus": "", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "", "verbatimEventDate": "", "habitat": "Gravel-sand opening at side of woods road with Gratiola neglecta, Agrosits scabra, Juncus brevicaudatus, Scirpus cyperinus, Carex scoparia, etc", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "Minnesota", "county": "", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}