What is the starting material in the following sequence of reactions? 
Definitions:
Effective Treatment
A therapeutic intervention proven to yield positive outcomes in treating a specific condition or disorder.
Long-term Problems
Issues or difficulties that persist over an extended period of time, often with significant impacts on an individual ’s life.
Family Therapist
A psychotherapist specializing in treating family dynamics and relationships, often addressing patterns of behavior and communication issues within the family unit.
Psychological Disorders
Mental health conditions marked by significant disturbances in an individual's thoughts, feelings, or behaviors, affecting their ability to function in daily life.
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