Task: Question Answering
Input (English): passage: The most common marine fish in the Sound include porgy, butterfish, winter flounder, summer flounder, windowpane flounder, fourspot flounder, northern and striped sea robin, little skate, menhaden, Atlantic silversides, black seabass, blackfish (tautog), cunner, bluefish, and smooth dogfish. Frequently Atlantic bonito and false albacore, both members of the tuna family, enter the sound and can be caught by anglers from small boats and shore. Many species have declined rapidly since 1975 due to over fishing. Winter flounder may not be currently present except for rare, small local populations. Tautog and summer flounder are also less numerous. Anadromous fishes include striped bass, white perch, alewives, blueback herring, and American and hickory shad. Although several shark species likely infrequently wander in and out of the Sound, e.g. blue shark, mako shark, hammerhead shark & thresher shark, there are only four species of sharks which are regularly found in the area. These are the sand tiger shark, the sandbar shark, the spiny dogfish and the smooth dogfish.
 question: do sharks live in the long island sound?
Output (English): Yes