These are one-use paper packets the contain a mixture of iron filings and other substances.
(These; are; one-use paper packets the contain a mixture of iron filings and other substances) Context(These are,List([0, 9))):(one-use paper; packets; the contain a mixture of iron filings and other substances)
These are,List([0, 9))
These one-use paper
are packets
one-use paper packets the contain a mixture of iron filings and other substances
the contain a mixture of iron filings and other substances