The children, seated on their mother's laps, played with toys on a table in front of a <e1>picture</e1> with <e2>holes</e2> in it.
The children, seated on
The children, seated on their mother's laps, played with toys on a table in front of a picture with holes in it.
<triplet> picture <subject> holes <object> Component-Whole(e2,e1)