In a base game, when a combination of symbols, that would be a winning
combination of all "BAR"s if a remaining symbol of the combination of the
symbols were the "BAR", has come to a stop on a payline L and the symbol
"BAR" neighbors the symbol other than the "BAR" (=the remaining symbol)
on the payline, same payout as that when the winning combination of all
"BAR"s comes to a stop on the payline L is provided.