The present invention relates to a floatable vessel lift comprising: at least two pontoon chambers, where each of the at least two pontoon chambers includes a top housing and a base. A method to manufacture the building construction part is also described. The present invention also provides a pharmaceutical composition, a cell growth inhibitor, and an anticancer agent containing the antibody as an active ingredient, and a method for treating cancer, a method for predicting the efficacy of cancer treatment, and a method for determining the presence of cancer in a test subject using the antibody. A pocket region of a second conductivity type opposite the first conductivity type is horizontally between the channel region and the second sourcedrain region. This constructed top is necessary to this device.