The sentence is "Many believe an entirely new approach to indoor farming is required, employing cutting-edge technologies. One such proposal is for the 'Vertical Farm'. The concept is of multi-storey buildings in which food crops are grown in environmentally controlled conditions."
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Winnie Chan Winnie Chan wrote: What does "of" mean in this sentence? The concept is of multi-storey buildings OF (used to indicate material, component parts, substance, or contents): a dress of silk; an apartment of three rooms; a book of poems; a package of cheese.
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Winnie ChanWinnie Chan wrote: What does "of" mean in this sentence? The concept is of multi-storey buildings
OF (used to indicate material, component parts, substance, or contents): a dress of silk; an apartment of three rooms; a book of poems; a package of cheese.