I think asking us to explain the brief to you would be defeating the object a bit - you need to do the task yourself to the best of your ability, and that includes reading through the brief
and understanding what is being asked. If you have any queries then maybe the answer is in the brand id you've been give. Or maybe it will be elsewhere on their web pages etc, so
just make sure you do your homework. Otherwise, if it's a very loose brief then they want to see how creative you are, simple as that.