t; forgery; procurement fraud; false claims; tax evasion; filing false tax returns; or any conduct defined as a racketeering activity under Title 18, U.S.C. s. 1961(1)(A)(B) and (D). ???Enterprise???, an entity including any individual, sole proprietorship, partnership, corporation, association, trust or other legal entity and any unchartered union or group of persons associated in fact although n