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`Say' echos its argument. Its return value is of no interest.
`Truth' echos its argument and returns a TRUE result.
`False' echos its argument and returns a FALSE result.
Truth 1 && Truth 2 || Say 3 output=12
( Truth 1 && Truth 2 ) || Say 3 output=12
Truth 1 && False 2 || Say 3 output=123
( Truth 1 && False 2 ) || Say 3 output=123
False 1 && Truth 2 || Say 3 output=13
( False 1 && Truth 2 ) || Say 3 output=13
False 1 && False 2 || Say 3 output=13
( False 1 && False 2 ) || Say 3 output=13
Truth 1 || Truth 2 && Say 3 output=13
Truth 1 || ( Truth 2 && Say 3 ) output=1
Truth 1 || False 2 && Say 3 output=13
Truth 1 || ( False 2 && Say 3 ) output=1
False 1 || Truth 2 && Say 3 output=123
False 1 || ( Truth 2 && Say 3 ) output=123
False 1 || False 2 && Say 3 output=12
False 1 || ( False 2 && Say 3 ) output=12
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