This LSAT grouping game provides clues to the distribution of the elements, and, by focusing on distribution, a number of deductions may be drawn.
Use R, T, V as the groups, and place the technicians (S, U, W, X, Y, Z) within those groups. Note that the first paragraph states that each element must appear in "at least one" group, thus, all elements must appear at some point, and, this knowledge will help determine the distribution of elements.
Place each condition into the diagram, if possible, and then draw deductions about distribution of elements.
The first condition states that X and three others are in group R. Place this into the diagram: