They will also see that only a subset of the metal objects are magnetic.
(They; will also see; that only a subset of the metal objects are magnetic) Context(They will also see,List([0, 18))):(only a subset of the metal objects; are; magnetic)
They will also see,List([0, 18))
They only a subset of the metal objects
will also see are
that only a subset of the metal objects are magnetic
magnetic