Draw a class diagram representing the application domain facts below, and map it to a relational schema.
• A project involves a number of participants.
• Participants can take part in a project either as project manager, team leader, or developer.
• Within a project, each developer and team leader is part of at least one team.
• A participant can take part in many projects, possibly in different roles. For example, a participant can be a developer in project A, a team leader in project B, and a project manager in project C. However, the role of a participant within a project does not change.
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