Context: 8th and 9th Streets run parallel to each other, beginning at Avenue D, interrupted by Tompkins Square Park at Avenue B, resuming at Avenue A and continuing to Sixth Avenue. West 8th Street is an important local shopping street. 8th Street between Avenue A and Third Avenue is called St Mark's Place, but it is counted in the length below.

Question: West 8th Street is an important local street for what activity?
Answer: shopping

Question: 8th Street between Avenue A and Third Avenue is called what?
Answer: St Mark's Place

Question: Where do 8th and 9th Streets begin?
Answer: Avenue D

Question: Where do 8th and 9th Streets end?
Answer: Sixth Avenue

Question: Which park interrupts 8th and 9th Street at Avenue B?
Answer: Tompkins Square Park