It means that lightening is made out of electricity and magnetism, hence the term electromagnetism.
(It; means; that lightening is made out of electricity and magnetism, hence the term electromagnetism) Context(It means,List([0, 8))):(lightening; is made; out of electricity and magnetism)
It means,List([0, 8))
It lightening
means is made
that lightening is made out of electricity and magnetism, hence the term electromagnetism
out of electricity and magnetism