ptestudy , FIB질문

Away from the rumble of Shanghai's highways and the cacophony of the shopping districts, stroll down side streets filled with rows of tall (brick) houses. In the early evening or on a weekend morning, you'll hear the sound of classical music drifting from a piano, played by a 10-year old or a grandmother in her seventies. Wander down another alley toward drab high-rises and you'll hear Beethoven or Mozart flowing from a violin, or perhaps a cello, accordion or flute.

괄호 친 부분이 wooden brick thatched iron 중 고르는 것이었는데, 어떤 근거로 brick이라고 확신하죠??