Appeal of plaintiffs is based on an alleged error in the instructions to the jury. The plaintiffs neither objected to those instructions nor requested contrary ones. Absent such request or objection, they are foreclosed from challenging the instructions given, DeSimone v. Manzi, 114 R. I. 30, 327 A.2d 840 (1974). See also Super. R. Civ. P., 51(b). Accordingly, the defendants’ motion to affirm the judgment below pursuant to Rule 16(g) is granted.