A man in a dance studio holds the hand of a boy, teaching him to dance.
A father is helping his son before his first dance.
The relationship between the two dancers does not have to be father and son.  The reason for dance lessons could be for something other than a first dance.
exists e1 e2 p1 x1 x2 x3 x4 x5.(n_male(x4) & n_hand(x4) & for(e1,e2) & Topic(e2,p1) & Recipient(e2,x4) & Actor(e2,x1) & v_teach(e2) & exists e3.(Actor(e3,x4) & v_dance(e3)) & Theme(e1,x4) & Actor(e1,x1) & v_hold(e1) & of(x4,x5) & n_boy(x5) & in(x1,x2) & n_studio(x2) & of(x2,x3) & n_dance(x3) & n_man(x1))
exists e1 s1 x1 x2 x3.(before(e1,x3) & n_dance(x3) & a_first(s1) & Theme(s1,x3) & of(x3,x1) & n_male(x1) & n_male(x1) & Theme(e1,x2) & Actor(e1,x1) & v_help(e1) & n_son(x2) & of(x2,x1) & n_father(x1))