What is the terminal outbound station of the D line in the Boston MBTA?
Riverside Station is the last station headed outbound on the D line of Boston's MBTA.
<START_INST>What is the terminal outbound station of the D line in the Boston MBTA?<END_INST><START_CTX><END_CTX><START_A>Riverside Station is the last station headed outbound on the D line of Boston's MBTA.<END_A>