In the Expression transformation graphic below, what is the value of the PREVIOUS_STATE port for row 2, given that the value for the STATE port was 'CA' for row 1? 
Definitions:
Primitive Belief
Basic or early forms of belief that are often uncomplicated and rooted in superstition or the direct experiences of a society or individual.
Heuristic
A problem-solving strategy that uses a practical approach or shortcut that produces solutions that are not guaranteed to be optimal but are sufficient for immediate goals.
Balance Theory
A theory concerning the determinants of consistency in three-element cognitive systems.
Childhood Friends
Long-term friendships that begin in childhood, often characterized by high levels of trust and shared experiences.
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