Sentence:  Travelers entering from the desert were confounded by what must have seemed an illusion : a great garden filled with nightingales and roses , cut by canals and terraced promenades , <WSD>studded</WSD> with water tanks of turquoise tile in which were reflected the glistening blue curves of a hundred domes . 
Meaning of the word marked with <WSD> tags:  scatter or intersperse like dots or studs