sentence2_structure: certain other metals<>can form<>a(n) electromagnet
sentence1: E Electromagnet Device in which an electric Current , passing through a wire coil wrapped around a soft iron core, produces a Magnetic Field .
sentence2: A solenoid or coil wrapped around iron or certain other metals can form a(n) electromagnet.
question: A solenoid or coil wrapped around iron or certain other metals can form what kind of magnet?