They went into a big walk-in closet where there was a <e1>suitcase</e1> with another locked <e2>suitcase</e2> in it.
They went into a
They went into a big walk-in closet where there was a suitcase with another locked suitcase in it.
<triplet> suitcase <subject> suitcase <object> Content-Container(e2,e1)