A group of six children with one instructor pointing which way to paddle while white river rafting in a raft.
A teacher is showing a group of kids how to use a raft.
An instructor is a teacher.
(x)
exists e1 p1 x1 x2 x3.(Theme(e1,x2) & Actor(e1,x1) & v_show(e1) & of(x2,x3) & Topic(x3,p1) & exists e2 x4.(Theme(e2,x4) & Actor(e2,x3) & v_use(e2) & n_raft(x4)) & n_kid(x3) & n_group(x2) & n_teacher(x1))