On a scale from 0-5, where 0 is "not similar" and 5 is "very similar", how similar is the sentence "The government has chosen three companies to develop plans to protect commercial aircraft from shoulder-fired missile attacks, homeland security officials announced Tuesday." to the sentence "The Department of Homeland Security announced Tuesday that it has selected three companies to continue research into ways to thwart shoulder-fired missile attacks on U.S. commercial aircraft."?
5