What foreshadowing was used in the outsiers chapter 4-6?

In chapters 4-6 of "The Outsiders," foreshadowing is seen in Ponyboy's dream about Johnny's fate and the repeated warning signs of the escalating tensions between the Socs and the Greasers, which hint at the upcoming conflict. The introduction of the character Cherry Valance also foreshadows the potential for both unity and further division between the groups.