A woman is holding onto another woman's arm.
A woman holds onto another woman's arm because she is frightened.
A woman holding another woman's arm does not imply it is because she is frightened.
exists e1 x1 x2 x3.(onto(e1,x3) & n_arm(x3) & of(x3,x2) & n_woman(x2) & -(x2 = x1) & n_woman(x1) & n_woman(x1) & Actor(e1,x1) & v_hold(e1))
exists e1 p1 x1 x2 x3.(exists s1.(Theme(s1,x1) & a_frightened(s1)) & n_female(x1) & because(e1,p1) & onto(e1,x3) & n_arm(x3) & of(x3,x2) & n_woman(x2) & -(x2 = x1) & n_woman(x1) & n_woman(x1) & Actor(e1,x1) & v_hold(e1))