In Chapter 10 of "A Long Walk to Water" by Linda Sue Park, the claim that there is water between the two trees seems to symbolize hope and the search for resources in the harsh environment of South Sudan. The strangers might be outsiders who are either searching for water themselves or trying to exploit the area for their own needs. This claim could also reflect the desperation of people who are living in difficult conditions and are willing to believe in potential sources of water, which is a critical resource for survival in such a region.
The strangers could be travelers, explorers, or even those from neighboring communities who are familiar with local geography and might have more knowledge about potential water sources. Alternatively, they could represent soldiers or factions who are taking advantage of the situation during the conflict in the area. These characters serve to illustrate the various interactions and complexities that arise from the struggle for survival amidst scarcity.