The best mode of the invention is to form the <e1>pillow</e1> of firm <e2>foam</e2> rather than using cotton or cloth or feather filers.
The best mode of
The best mode of the invention is to form the pillow of firm foam rather than using cotton or cloth or feather filers.
<triplet> pillow <subject> foam <object> Component-Whole(e2,e1)