Abstract: A game toy comprises first type items, and second type items which serve as an element for constructing a deck, wherein the first type items are associated with a first type character, the second type items are associated with a second type character, the first type items include two or more pieces of identification information, which is visually identifiable, the second type item includes one of the two or more pieces of the identification information which is visually identifiable, groups to which the first type character and the second type character respectively belong are identified from the identification information, and the deck can be constructed from the second type items, which include any one of the two or more pieces of identification information of the first type character.

Abstract: A control valve unit includes a pilot-operated first operation valve 21 that can be operated to a first closed position at which a first oil passage 41 and a tank port 24 are disconnected from each other and a first open position at which the first oil passage 41 and the tank port 24 are connected to each other; and a pilot-operated second operation valve 22 that can be operated to a second closed position at which a second oil passage 42 and the tank port 24 are disconnected from each other and a second open position at which the second oil passage 42 and the tank port 24 are connected to each other.

Abstract: A control valve unit includes a pilot-operated first operation valve 21 that can be operated to a first closed position at which a first oil passage 41 and a tank port 24 are disconnected from each other and a first open position at which the first oil passage 41 and the tank port 24 are connected to each other; and a pilot-operated second operation valve 22 that can be operated to a second closed position at which a second oil passage 42 and the tank port 24 are disconnected from each other and a second open position at which the second oil passage 42 and the tank port 24 are connected to each other.

Abstract: It is an object of the present invention to provide a demethylation method that, from among multiple methylated regions present in the genome DNA of a living cell, can demethylate a specified methylated region only without influencing the other methylated regions, and to achieve the object, a target methylated region present in either a sense or antisense DNA chain in genome DNA of a living cell is demethylated, by artificially generating in the living cell the following (a) RNA comprising a base sequence equivalent to the base sequence of a region comprising all or part of the target methylated region in the DNA chain where the target methylated region is present, or (b) RNA comprising a base sequence equivalent to the base sequence of a region comprising a region neighboring the target methylated region in the DNA chain where the target methylated region is present.