Sentence:  Here, in the transept and choir, where the service was being held, one was conscious every moment of an increasing brightness; colours glowing vividly beneath the circular chandeliers, and the <WSD>rows</WSD> of small lights on the choristers' desks flashed and sparkled in front of the boys' faces, deep linen collars, and red neckbands. 
Meaning of the word marked with <WSD> tags:  A line of objects, often regularly spaced, such as seats in a theatre, vegetable plants in a garden etc.