In a disturbing laboratory experiment in which a <e1>gun</e1> was hidden in a <e2>drawer</e2>, many boys found the weapon, played with it and even pulled the trigger without knowing whether it was loaded.
In a disturbing laboratory
In a disturbing laboratory experiment in which a gun was hidden in a drawer, many boys found the weapon, played with it and even pulled the trigger without knowing whether it was loaded.
<triplet> gun <subject> drawer <object> Content-Container(e1,e2)