Assertion: maltese | /r/HasProperty | between 3 to 4 kg
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Source sentences:
text: The American Kennel Club calls for a weight between 4 to 7 lb (1.8 to 3.2 kg), with 4 to 6 lb (1.8 to 2.7 kg) preferred, while the FCI standard popular in Europe prefers a heavier Maltese between 3 to 4 kg (6.6 to 8.8 lb).