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

### Instruction:
Bubba bought a new two-story warehouse.  When empty, the first floor of the building contains twice as much floor space for storage as the second floor.  The first items he brought into his empty building were several thousand boxes; and he put them all on the second floor, which filled one-quarter of the second floor storage space.  If the boxes used up 5,000 square feet of storage space, how many square feet of storage space is still available in the building?

### Response:
 Ikiwa futi za mraba 5,000 zinaonyesha robo ya nafasi ya kuhifadhi ya sakafu ya pili, basi sakafu ya pili ina futi za mraba 5,000*4=<<5000*4=20000>>20,000 za nafasi ya kuhifadhi.
Na kwa kuwa sakafu ya kwanza ina nafasi mara mbili ya sakafu ya pili, basi sakafu ya kwanza ina futi za mraba 20,000*2=<<20000*2=40000>>40,000 za nafasi ya kuhifadhi.
Hivyo, wakati tupu, jengo lote lina futi za mraba 20,000+40,000=<<20000+40000=60000>>60,000 za nafasi ya kuhifadhi.
Hivyo, kuna futi za mraba 60,000-5,000=<<60000-5000=55000>>55,000 za nafasi ya kuhifadhi zilizobaki katika jengo.