What is the author's style in Burn This by Lanford Wilson?

Burn This is a two-act play. The exposition occurs in the first act when the audience learns of Robbie's death and the family history. The complication also occurs in this act when it becomes clear that Anna cares about Pale. The climax occurs at the beginning of the second act when Burton and Pale fight, and Anna throws Burton out and chooses Pale. The falling action, which is the result of the climax, occurs later in act two when Anna admits that she is frightened of emotional involvement. In the catastrophe, an old word for conclusion, Larry unites the two lovers.