Read the following passage to answer the question

A long time ago in East Java, there lived two powerful

animals: a shark named Sura and a crocodile named Baya. They were once friends

who shared the same home in the sea, but whenever they were hungry, they argued

because both were greedy and refused to share food. One hot day, they found a

goat near the shore, and both wanted it for themselves. They fought fiercely

for hours until they grew too tired to continue. Realizing how useless the

fighting was, Sura suggested they divide their territories. Sura would live and

hunt in the sea, while Baya would stay on land and hunt there, with the beach

as their boundary. Baya agreed, and for a while, they lived peacefully in their

own areas.

However, as time passed, Sura struggled to find enough food

in the sea. Desperate, he entered a river on land to hunt. When Baya discovered

him there, he became furious and reminded Sura of their agreement. Sura argued

that since the river held water, he had the right to be there. Their

disagreement turned into a violent battle in which they bit and attacked each

other fiercely. In the end, Sura was badly wounded and fled back to the sea,

leaving Baya victorious on land.

The place where the battle happened became known for the

struggle between the shark and the crocodile. People later named the area by

combining their names, remembering the conflict that shaped the region. Today,

the story teaches an important lesson about greed, keeping promises, respecting

boundaries, and understanding that fairness can prevent unnecessary conflict.

Adapted from Folklore Lover

4. What is the main idea of the passage above?