Invalid civil acts: refer to civil acts that are not legally binding from the beginning. Which of the following civil acts are invalid: (1) performed by a person without capacity for civil conduct; (2) a person who has limited capacity for civil conduct cannot be independent according to law (3) One party used fraud, coercion or threats to make the other party action against the true meaning; (4) malicious collusion that harmed the interests of the country, the collective or a third party; (5) Violation Legal or social public interest; (6) Covering illegal purposes in legal form. According to the above definition, which of the following is invalid civil acts? ['After returning to his hometown after graduating from Xiao Wang University, he wants to build his hometown. During the new village committee election, he solemnly exercised his right to vote and be elected, and was elected as the village head.', 'Li Laohan is 85 years old. He was admitted to the hospital suddenly because of a heart attack a few days ago. He has three sons. He was afraid that they would have conflicts after his death.', 'Three girls in a middle school have better musical talents, and their band often wins in various inter-school competitions. A record company verbally pays high fees and confers them with their parents without the consent of their parents. Signed and suspended school.', 'A citizen who has lived with his wife for five years finds out that they can no longer continue to live, so they file a divorce with the court.']