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": ""}
 "A shrub - about 5-8 ft. high. Tree No. 20" "Corymbs glabrous, 10-flowered. Calyx lobes almost entire. Young foliage bronze-green. Flowers 1.5-2 cm in diameter, open on May 25th 1929. Stamens 15-20 Anthers-dark cirmson styles 4-5" !           crataegus Tu   l? WASHTENAW  s.n.  i.    UMITED STATES E           
{"catalogNumber": "", "order": "", "family": "", "scientificName": "", "scientificNameAuthorship": "", "genus": "Crataegus", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "s.n.", "verbatimEventDate": "", "habitat": "", "occurrenceRemarks": "\"A shrub - about 5-8 ft. high. Tree No. 20\" \"Corymbs glabrous, 10-flowered. Calyx lobes almost entire. Young foliage bronze-green. Flowers 1.5-2 cm in diameter, open on May 25th 1929. Stamens 15-20 Anthers-dark cirmson styles 4-5\"", "associatedTaxa": "", "country": "United States", "stateProvince": "", "county": "Washtenaw", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}