The manifold was constructed so that the <e1>heads</e1> of the <e2>ferrets</e2> protrude into the stream of mixed air and smoke flowing through the manifold.
The manifold was constructed
The manifold was constructed so that the heads of the ferrets protrude into the stream of mixed air and smoke flowing through the manifold.
<triplet> heads <subject> ferrets <object> Component-Whole(e1,e2)