Node  -  Set:

J.K.Rollings British

Sophocles Greek

Plato Greek

Single Node:

Sophocles Greek

Node-set count is: 3

Single node count is: 1

Union count is: 3

count(union) - count(node-set) is: 0

node is a member of nodeSet.

Variable-based membership is "0"

Node  -  Set:

J.K.Rollings British

Sophocles Greek

Plato Greek

Single Node:

Node-set count is: 3

Single node count is: 0

Union count is: 3

count(union) - count(node-set) is: 0

node is a member of nodeSet.

Variable-based membership is "0"