The hydraulic action of the water filtering through these cracks cause them to become enlarged and undermines the softer rock layer below.
(the water; filtering; through these cracks) (them; enlarged; ) (The hydraulic action of the water; undermines; the softer rock layer below) (The hydraulic action of the water; cause; them to become enlarged) Context(The hydraulic action of the water cause,List([0, 70))):(them; to become; enlarged)
The hydraulic action of the water cause,List([0, 70))
the water them The hydraulic action of the water The hydraulic action of the water them
filtering enlarged undermines cause to become
through these cracks
the softer rock layer below
them to become enlarged
enlarged