How similar are these two sentences, on a scale from 0-5 (0 is "not similar" and 5 is "very similar")?

A key figure in former state Treasurer Paul Silvester's bribery scheme was accused Wednesday of changing his story about Silvester's alleged corrupt dealings with a Boston investment firm.
A key player in former state Treasurer Paul Silvester's corruption scheme testified on Tuesday about kickbacks and bribes Silvester traded for state business.
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