Case 1: Civil Law Case B is a minor whose parents are dead. The village committee where B lives has designated B’s brother A as B’s guardian and notified A. A did not agree or deny it. . Ten days after A was notified to be a guardian, B got into a fight with the neighbor's child, causing a loss of 400 yuan. The parents of the neighbor's child filed a lawsuit, demanding B to compensate for the loss. The court notified A to respond to the lawsuit, but A refused to appear in court, and at the same time filed a lawsuit against the village. After hearing the appointment of the village committee, the court ruled that it revoked the appointment of the original village committee and appointed B's sister Ding as B's guardian. For this reason, there were different opinions on who should bear the liability for compensation. Ding is not responsible for this incident. When A was appointed as B's guardian, although he did not agree with the appointment, in order to prosecute, A should be responsible for the matter. B's grandparents should not be held responsible. Please prepare a case analysis report for the above case (including a brief description of the case, pointing out the focus of disputes in the case and its legal application, and analyzing it from the perspective of the legal theories involved in the case). Case 2: Criminal Law Case The defendant Li rented the first floor of No. 53 Gongyuanshan Road, Tongjun Street, Tonglu County, and the victim Dong rented the room opposite the room rented by the defendant Li. At about 9 a.m. on August 31, 2004, the defendant Li saw the key in the door of the victim Dong's room. He immediately had evil thoughts and opened the door with a knife to enter the rented house of the victim Dong. The defendant Li held Dong at knifepoint and asked him to hand over cash. The victim Dong took out 100 yuan in cash from the bag in the desk drawer and handed it to the defendant Li. The defendant Li thought the money was too little and threw the 100 yuan cash back into the drawer. At the same time, he proposed to have sex with the victim Dong. The victim Dong refused and resisted vigorously. During this period, the defendant Li bit the victim Dong’s upper limbs (slight superficial injuries). Afterwards, the victim Dong pretended to agree to have sex with the defendant Li in his rented house in the afternoon, and the defendant Li stopped the violence. The defendant Li returned to his own rental house and gave 500 yuan in cash to the victim Dong to see his injuries, and asked him not to call the police before returning to his own rental house. When the victim Dong saw the defendant Li returning to his room, he called "110" to call the police. The defendant Li was arrested and brought to justice. Please prepare a case analysis report for the above case (including a brief description of the case, pointing out the focus of disputes in the case and its legal application, and analyzing it from the perspective of the legal theories involved in the case). Case 3: Civil Procedure Law Case Li Chun and Du are a couple. They live together in the radio factory’s family building in Chengguan District, City A, but have 6 rooms in the suburbs of their hometown, City B, where their eldest son Li Ming lives. In 1996, Li Chun and his wife died in a car accident. The old man's eldest daughter Li Mei is married and lives in City A. The old man's second son, Li Ke (17 years old), was admitted to a university in City B in 1998. Because the university was close to Li Ming's residence, Li Ke asked Li Ming's wife Zhang Li to vacate a room in his parents' room for his own use. live. Zhang Li said: "Li Ming has been sentenced to five years in prison for committing a crime. He is not at home and cannot make decisions by himself; and 4 rooms have been rented to Fang and Liu. The lease period has not expired and he cannot vacate the room." This happened. Due to the dispute, Li Ke filed a lawsuit in a court, requesting the division of his parents' legacy. After a court accepted the case, it was discovered during the trial that in addition to the two heirs, Li Ming and Li Ke, there were also two heirs, the old man's eldest daughter Li Mei and his second daughter Li Na. After being notified by the court, Li Mei made it clear that she gave up her inheritance rights and would not participate in the lawsuit; Li Na neither explicitly gave up her right to inheritance nor participated in the lawsuit. After the court heard the case for the first time, a person who was not involved in the case came to the court and said that the six rooms that Li Ming and his wife lived in were purchased with capital from the deceased Li Chun and his wife when they were doing business together in 1948. He owns half of the property rights and submitted to the court the deed signed by both parties when purchasing the house. Please prepare a case analysis report for the above case (including a brief description of the case, pointing out the focus of the case and its legal application, and analyzing the parties involved in the case from the perspective of the civil procedure law theory involved in the case).