Context: 'I already have a good supply of fresh water from the lake I will be camping by, and can hunt for some food but not all.  What are you in need of?' 'oh that's great, what type of quality you have from us' 'I have high quality water?  I'm not sure if I understand that question to be honest.'
Utterance: 'oh okay, you understand correctly, when you take the material from us'