question: What consisted of two rows of lights that formed a funnel , indicating an aircraft 's position on the glidescope ?
answer: slope-line approach system
turker_answer: The slope-line approach system consisted of two rows of lights that formed a funnel , indicating an aircraft 's position on the glidescope .
rule-based: Slope-line approach system consisted of two rows of lights that formed a funnel , indicating an aircraft 's position on the glidescope .