Tangible property used in a trade or business of a Qualified Opportunity Fund if such property (i) was acquired by purchase after December 31, 2017, (ii) the original use of such property in the Qualified Opportunity Zone commences with the Qualified Opportunity Fund or the Qualified Opportunity Fund substantially improves the property, and (iii) substantially all of the use of such property was in a Qualified Opportunity Zone during substantially all of the Qualified Opportunity Fund holding period for the property.