East hands for Set 2

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#1) West deals, both vulnerable

J 2
6 4
Q 7 3
A J 10 9 7 3

#2) West deals, neither side vulnerable

K 7
K 10 7
A 10 6 3 2
A 6 4

#3) South deals and opens 1, both vulnerable

A Q 5 2
8 6 4
Q 7 5
Q J 10

#4) West deals, both vulnerable

K Q
8
K J 10 8
A K J 10 9 5