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": ""}
soil: gravel. associes: oxalis corniculatua; bromus tectorum; veronica arvensis; lepidium virginicum; arenaria serpyllifolia. n  l.  ]4cz     Z5:C:TECTORUM BROMUS TECTRUM |  -    R1f 4 POALES >   B AP 42.45608  E<Ju  1517985       (@jS michigan  3NJF Bromus   Q -84.00g539 [edwin s. george reserve] grid o-29. in fire break along e. fenge. #     poaceae  aW7m UNITED STATES  livingston 0iuG    < 1941-05-21 f.n. hamerstrom, jr. stN  
{"catalogNumber": "1517985", "order": "Poales", "family": "Poaceae", "scientificName": "Bromus tectorum", "scientificNameAuthorship": "L.", "genus": "Bromus", "subgenus": "", "specificEpithet": "tectorum", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "F.N. Hamerstrom, Jr.", "recordNumber": "4", "verbatimEventDate": "1941-05-21", "habitat": "Soil: Gravel. Associes: Oxalis corniculatua; Bromus tectorum; Veronica arvensis; Lepidium virginicum; Arenaria serpyllifolia.", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Livingston", "municipality": "", "locality": "[Edwin S. George Reserve] Grid O-29. In fire break along E. fence.", "decimalLatitude": "42.45608", "decimalLongitude": "-84.00539", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}