A polyoxyalkylene monoalkyl ether which gives, in gel permeation chromatography, a chromatogram which satisfies a relation expressed by an equation: S1S00. The air is adapted to flow along a path having an extension from the first opening to the second opening. A base has a switch member and is movably engaged with the performance unit. The identified users are authorized to freely edit only the selected region of the electronic document. The invention further relates to hybrid soybean seeds, plants and plant parts produced by crossing the cultivar S010136 with another soybean cultivar. Under such configuration, if a user separates the signal generating device from the signal receiving device for input of position information, the contact power switch is automatically turned on.