Life / Understanding Polish Mailing Addresses [21]

Hi,

I am a native-born American of Polish heritage. I never learned to speak Polish, because as a child, my parents and my maternal/paternal grandparents always used the Polish language to talk about things when they didn't want me to be able to understand what they were talking about.

I will be visiting Europe for the first time in June of 2013... specifically in the Lviv Ukraine area. I have an approximately ten-year-old mailing address of a cousin and I an hoping to find it's location in Poland. The address is as follows:

Barbara Bieda
3 MAJA 44/8
Oesnica Slaska 56400
Poland

Can anyone explain or tell me the location of this cousins' address for me? Thank You for your time... Bernard Pokorski