Question: Which of the 2 movies, Voices of Bam or Land of Silence and Darkness, documented a natural disaster?

Context paragraphs:
Livestock Indemnity Program: The Livestock Indemnity Program (LIP) is a program periodically authorized and funded on an emergency basis by Congress to compensate livestock producers for losses caused by a natural disaster.  Under the program, a payment is made to help producers defray the cost of replenishing their herds when livestock are killed by a natural disaster.

Salim-Javed: Salim-Javed were a duo in the Indian film industry who worked for 24 films from 1971–1987 of which 20 were commercially and critically successful films.  They worked together in 22 Bollywood movies and two Kannada films – Premada Kanike and Raja Nanna Raja.  The duo, composed of Salim Khan and Javed Akhtar, made the writer's role popular with their names appearing in the posters of the films, and in some films they shared up to 25% of the profit.  Their association lasted until 1982, when due to ego issues both decided to split after which Javed moved into writing lyrics for around 80 films and scripts for 20 films from 1981 till present times whereas Salim wrote for 10 scripts between 1983–1996.  They worked on 2 movies like Zamana and Mr. India even after the split, only because these scripts were written earlier and made into film later after they split.  During their time working together, the duo won six Filmfare Awards.  Although the dilaogues from these movies are considered to be in Hindi, they mostly include vocabulary from Urdu, a register of the Hindustani language. Salim-Javed, many a times described as "the most successful scripwriters of all-time", are also noted to be the first scriptwriters in Hindi films to achieve star status.

Disaster recovery plan: A disaster recovery plan (DRP) is a documented process or set of procedures to recover and protect a business IT infrastructure in the event of a disaster.  Such a plan, ordinarily documented in written form, specifies procedures an organization is to follow in the event of a disaster.  It is "a comprehensive statement of consistent actions to be taken before, during and after a disaster".  The disaster could be natural, environmental or man-made.  Man-made disasters could be intentional (for example, an act of a terrorist) or unintentional (that is, accidental, such as the breakage of a man-made dam).

Casualty estimation: Casualty estimation is the process of estimating the number of injuries or deaths in a battle or natural disaster that has already occurred.  On the other, casualty prediction is the process of estimating the number of injuries or deaths that might occur in a planned or potential battle or natural disaster.

Casualty prediction: Casualty prediction is the science of predicting the number of deaths or injuries that may result from an epidemic, natural disaster or act of war such as the explosion of a nuclear weapon, chemical weapon or biological weapon.  (Casualty estimation is the process of estimating the number of injuries or deaths in a battle or natural disaster that has already occurred.)

Volcano Disaster Assistance Program: The ‘’’Volcano Disaster Assistance Program’’’ (VDAP) was developed by the U.S. Geological Survey and U.S. Office of Foreign Disaster Assistance after the eruption of Nevado del Ruiz (Colombia) in 1985.  The volcanic eruption melted a glacier triggering a lahar that killed 23,000 people.  It was determined that increased monitoring and enhanced communications between scientists and civil authorities would make evacuating local populations much easier, saving lives.  Today the program responds to volcanic crises around the world.  The aim of the program is to assist in saving lives and property, to reduce economic losses, and to prevent a natural hazard becoming a natural disaster.  VDAP staff members are based at the USGS Cascades Volcano Observatory, in Vancouver, Washington.  VDAP channels its energy into four main activities; response to natural disaster, capacity building, training and volcanological research.

List of natural disasters by death toll: A natural disaster is a sudden event that causes widespread destruction, lots of collateral damage or loss of life, brought about by forces other than the acts of human beings.  A natural disaster might be caused by earthquakes, flooding, volcanic eruption, landslide, hurricanes etc.  In order to be classified as a disaster, it will have profound environmental effect and/or human loss and frequently incurs financial loss.

Land of Silence and Darkness: Land of Silence and Darkness (German: Land des Schweigens und der Dunkelheit ) is a 1971 documentary film about deaf-blind people and their experience of life.  The film was written, directed, and produced by Werner Herzog.  Rolf Illig provided narration.

Voices of Bam: Voices of Bam (Dutch: "Stemmen van Bam" / Persian: صداهای بم‎ ‎ ) is a 2006 Dutch-made documentary feature film about 2003 Bam earthquake.  The film was produced and directed by Dutch filmmakers Aliona van der Horst.

Natural disaster: A natural disaster is a major adverse event resulting from natural processes of the Earth; examples include floods, hurricanes, tornadoes, volcanic eruptions, earthquakes, tsunamis, and other geologic processes.  A natural disaster can cause loss of life or property damage, and typically leaves some economic damage in its wake, the severity of which depends on the affected population's resilience, or ability to recover and also on the infrastructure available.

Supporting paragraphs: Voices of Bam Land of Silence and Darkness
Answer: Voices of Bam