interface_build {
    {r.water.outlet} 0
    {Generates a watershed basin map from a drainage direction map and watershed outlet point.}
    {entry drainage {Drainage direction map (generated by r.watershed):} 0 raster}
    {entry basin {Output binary raster map of watershed basin (1=watershed):} 0 raster}
    {entry easting {Outlet point easting coordinate:} 0 ""}
    {entry northing {Outlet point northing coordinate:} 0 ""}
}