;;
;; A dog whose owner disappeared barked.
;;

a:
<_, x0, _>
{ SPEC:<h3, x0, _> }
{ h1:_the_q(x0, h2, _) }
{ h2 =q h3 }
{ }

dog:
<h0, x1, _>
{ }
{ h0:_dog_n_1(x1) }
{ }
{ }

disappear:
<h4, e1, x2>
{ SUBJ:<h4, x2, _> }
{ h4:_disappear_v_1(e1, x2) }
{ }
{ }

subject extraction LR (disappear):
<h4, e1, x2>
{ SLASH1:<h4, x2, _> }
{ h4:_bark_v_1(e1, x2) }
{ }
{ }

whose:
<h5, x3, _>
{ SPEC:<h5, x4, _> MOD:<h5, x3, _> }
{ h5:poss(e2, x3, x4) }
{ }
{ }

that:
<h5, x3, _>
{ MOD:<h5, x3, _> }
{ }
{ }
{ }