Arrange the key figures in German artistic and cultural heritage based on their area of influence:
1️⃣ Johann Wolfgang von Goethe (Literature, philosophy, science)
2️⃣ Ludwig van Beethoven (Classical music composition)
3️⃣ Käthe Kollwitz (Expressionist art, social commentary)
4️⃣ Marlene Dietrich (Film, cabaret performance)
5️⃣ Willy Brandt (Politics, diplomacy, social reform)