Rate the similarity of the following two sentences on a scale from 0 to 5, where 0 is "no meaning overlap" and 5 is "means the same thing"?

switzerland's trade and diplomatic relations with iran have been criticized in recent months after foreign minister micheline calmy-rey traveled to tehran in march 2008 to sign a deal with iran's state gas firm.
switzerland's trade and diplomatic relations with the islamic republic have been criticized in recent months after foreign minister micheline calmy-rey traveled to tehran in march 2008 to sign a gas deal.
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