Tel Aviv, Israel - Recent The implementation of the Israel-Hamas ceasefire agreement has brought hope to the families and friends of hostages still held in the Gaza Strip, but many fear that challenges remain as there is still uncertainty over whether both sides will uphold the hard-earned deal. The ceasefire, brokered by Qatar, Egypt and the United States, came into effect in Gaza on Jan 19. The three-phase agreement is aimed at a "permanent ceasefire between the parties", according to the mediators. Relatives of the remaining hostages in Israel have been relentlessly calling on the government to end the conflict and fully adhere to the terms of the agreement. During the first phase, 33 hostages held in Gaza are expected to be freed in exchange for 1,904 Palestinian prisoners and detainees. Among those expected to be freed during the first phase is Israeli citizen Ofer Kalderon, who was kidnapped from his home at Kibbutz Nir Oz along with two of his children. While the children were released in November 2023, Ofer Kalderon has remained in captivity. Sharon Kalderon, Ofer Kalderon's sister-in-law, has been tirelessly advocating for his release over the past 15 months. Negotiations for the second stage of the agreement are set to start on the 16th day of the first phase's implementation. The initial deal required months of intense mediation efforts, and relatives of hostages are worried about potential complications. Some relatives of the hostages, including Danny Elgarat, whose brother Itzik is being held in Gaza, fear that with each passing day, their loved ones' lives are at greater risk. Sharon Kalderon said she can hardly sleep at night; all she wants is her family back and the war to be over. One of the biggest challenges in completing all phases of the agreement is determining Gaza's political future. With Israel and the U.S. firmly against any role for Hamas in a post-war Gaza, experts said that a viable solution may depend on a broader coalition. Many in Israel are pinning their hopes on support from U.S. President Donald Trump, although following his inauguration on Monday, Trump reportedly expressed doubts about the ceasefire's durability. Shotlist: Tel Aviv, Israel - Recent: 1. Various of people gathering, holding signs showing photos of hostages; 2. Various of street scene; pedestrians; 3. People entering building; photos of hostages; 4. Photo of hostage Ofer Kalderon; 5. SOUNDBITE (English) Sharon Kalderon, relative of hostage (partially overlaid with shot 6): "Ofer is on the list but, and it's a big but, we don't know if he's dead or alive. We have to bring everyone back, until the last one. Dead or alive, we have to bring everyone back. This is the start -- we have to start somewhere, and this is a good start."; [SHOT OVERLAYING SOUNDBITE] 6. List of names of hostages; [SHOT OVERLAYING SOUNDBITE] Jerusalem - Recent 7. Israeli Knesset building, flags; Tel Aviv, Israel - Recent 8. SOUNDBITE (English) Danny Elgarat, relative of hostage (partially overlaid with shot 9): "We know that if the deal was happening in July, some of the hostages was alive then, and now they are no longer. There are some members of the government over there that want to sabotage the deal. We have to make sure that they are going until the end, and bring all of them."; [SHOT OVERLAYING SOUNDBITE] 9. Various of national flag of Israel, buildings, vehicles; [SHOT OVERLAYING SOUNDBITE] 10. Photo of hostage, wine; 11. Drawing showing images of hostages on wall; 12. SOUNDBITE (English) Sharon Kalderon, relative of hostage: "I want to go back home. I live in Kibbutz Sufa. I haven't been at home since Oct 8, when we got released from home. It's not safe over there. I cannot go back. I want to go back home. If the war will end, we can go back home -- all of us: the hostages, the soldiers, and us."; 13. Street scene, pedestrians; 14. SOUNDBITE (Hebrew, dubbed in English) Alon Eviatar, terrorism and Palestinian affairs expert (ending with shot 15): "I don't think there is any other solution for the Gaza Strip that is not Palestinian and Arab. When talking about Palestinians, it means the Palestinian Authority, not local forces in Gaza. Local forces in Gaza -- basically, there is no such thing, there is no such option. Only a combination of Arab countries and the Palestinian Authority, at least if not now, then in the coming years."; Gaza Strip - Recent 15. Traffic passing by destroyed buildings; Tel Aviv, Israel - Recent 16. Poster supporting Donald Trump; vehicles; 17. Various of entrance to building, name list, photos of hostages. [Restriction - No access Chinese mainland]