Instruction: Given a question and the related document, predict if the question is answerable based on the information provided in the document. Output only yes or no.

Input:
Question: Are these compatible with Medela Pumps?
Document: With the recent publicity about plastic bottles (even the non-BPA ones) not being safe, my husband really wanted to switch to stainless steel. I thought all the fear was overblown but went along with it.These bottles are *expensive* but I've still invested in having enough that we can go 24 hrs without re-using them.
The Pure Kiki ones do work with sippy cup attachment but I don't like them as much. They are not as cute looking, the bottle cap is a little silly and the paint on the bottle's chipping off a little (maybe we washed them with too hot water?). Anyway, I have a couple of the pure kiki ones which double as bottles & sippy cups and the rest of our bottles are kid kanteen.
Nice bottle, but my daughter wouldn't take the nipple, it doesn't quite have a nipple looking shape as much as the other one I bought (organic kidz). Also stainless steel is fabulous. Super easy to heat up under hot water or to clean, no stains!
I lover everything about this bottle. the wide mouth makes it easy to clean, the steal bottle warms up in half the time of my glass bottle, the vents on the nipple make sure it dose not collapse under the vacuum of my baby's mouth and if I drop it (or he throws it) I don't have to worry about it being broken.
I am very happy with this bottle. Warms up much faster than our thick glass bottles so it is great in the morning when baby is extra hungry. The bottle opening is the same size as other wide mouthed Klean Kanteen bottles. One drawback is you have to use Klean Kanteen bottle nipples. At first, the slow flow nipple seemed too fast for my breast-fed baby, but it is working well now. It would be nice to have the option of trying other brand nipples with this bottle.
Answer: no