Every three to five weeks due to the growth of the <e1>horse</e1>'s <e2>hoof</e2>, the shoe is removed and the hoof trimmed.
Every three to five
Every three to five weeks due to the growth of the horse's hoof, the shoe is removed and the hoof trimmed.
<triplet> horse <subject> hoof <object> Component-Whole(e2,e1)