Context: Spanish Supreme Court is the highest court for all cases in Spain (both private and public). Only those cases related to human rights can be appealed at the Constitutional Court (which also decides about acts accordance with Spanish Constitution).
In Spain, high courts cannot create binding precedents; however, lower rank courts usually observe Supreme Court interpretations. In most private law cases, two Supreme Court judgements supporting a claim are needed to appeal at the Supreme Court.
Five sections form the Spanish Supreme court:

Question: The Spanish Supreme Court hears all cases related to law in what areas?
Answer: private and public

Question: What types of cases can be appealed to Spain's Constitutional Court?
Answer: those cases related to human rights

Question: What is the other power of this latter court?
Answer: decides about acts accordance with Spanish Constitution

Question: High courts in Spain do not establish what for lower court rulings?
Answer: binding precedents

Question: In practicality, how do lower courts typically view the rulings of higher courts?
Answer: lower rank courts usually observe Supreme Court interpretations

Question: What are five Supreme Court judgement supporting a claim needed for?
Answer: Unanswerable

Question: What do lower rank courts always observe?
Answer: Unanswerable

Question: What action does the Supreme Court only allow for cases related to human rights?
Answer: Unanswerable