Determine if the sentence is true based on the text below:
Computer Associates now sells the CASE tool.

KnowledgeWare was a software company headquartered in Atlanta, Georgia co-founded by James Martin and run by Fran Tarkenton. It produced a Computer Aided Software Engineering (CASE) tool called IEW (Information Engineering Workbench). KnowledgeWare was sold to Sterling Software in 1994, which was in its turn acquired by Computer Associates.
It's impossible to say