Round 7

Can you answer the question in Part 3 from this?

Part 1

Which of the six nations teams has won the AABAB AABAA BABAA AABAA BAAAB BAABA competitions in the rugby championship

Part 2

Use the answer as a key with this method of encoding ( 6>:%GA0=6RE+ig' ) to solve Part 3

Part 3

wefii hshy gqx ocxhu chthr qlpeo iuu ygrh tx pleq

Hint:

Use the image below to help you find a function/tool to answer Part 1