Below is an instruction that describes a task. Write a response that appropriately completes the request in Swahili. Please answer in Swahili.

### Instruction:
Ellis is going to take a road trip with her family. First, she needs to figure out how many bottles of water she should bring for everyone. There will be four people total: Ellis, her mother, her sister, and her aunt. They will be on the road to their destination for 8 hours and drive 8 hours to return home. Every hour each person will want to drink 1/2 a bottle of water. How many water bottles will Ellis' family need total?

### Response:
 Ellis na familia yake ya watu 4 watasafiri (kwenda na kurudi) kwa jumla ya masaa 8 x 2 = <<8*2=16>>16.
Kila mtu anahitaji 1/2 chupa ya maji kila saa, hivyo kwa masaa 16, kila mtu atahitaji 16 masaa x 1/2 chupa = <<16*1/2=8>>8 chupa.
Jumla, watu 4 watahitaji 4 watu x 8 chupa = <<4*8=32>>32 chupa.