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

### Instruction:
Yves and his siblings ordered pizza and asked to have it cut into 16 slices.  During dinner time, they only ate one-fourth of it. The next day, Yves ate one-fourth of the remaining pizza. Then his two siblings ate 2 slices each. How many slices of pizza were left?

### Response:
 Yves na ndugu zake waliamuru pizza na kuomba ipasuliwe katika vipande 16.
Wakati wa chakula cha jioni, walikula robo tu ya hiyo.
Siku inayofuata, Yves alikula robo ya pizza iliyosalia.
Kisha ndugu zake wawili wakala vipande 2 kila mmoja.
Vipande vingapi vya pizza vilisalia?