Determine if the sentence is true based on the text below.
People are likely to start smoking tobacco when young.

The Australian state of New South Wales (NSW) launched its latest anti-cannabis campaign in Sydney today. The campaign, which specifically targets 14 to 19 year-olds aims to reduce the number of young people experimenting with the drug. The advertisements follow a tightening of cannabis laws in NSW last year. The campaign, which NSW Health has cost at AUD$600,000 will use a variety of print ads placed at bus stops and in youth magazines in addition to  advertisements on websites such as MySpace and MSN. Print ads use a tag line saying "Pot. It mightn't kill you, but it could turn you into a dickhead".
OPTIONS:
- yes
- no
no
The presence of oil in the South Atlantic was first proved in 1974, but the distance and isolation of the Falklands deterred oil companies from exploring the area until the 1990s.
OPTIONS:
- yes
- no
Question: Petroleum is explored in the South Atlantic.
yes
Larry Estrada, whose father served in the Marine Corps in Vietnam, said he has always had a great appreciation for the military and wanted to do his part to help.
Is this true: Larry Estrada's father belonged to the Marine Corps.
OPTIONS:
- yes
- no

A: yes
Question:
Mitsubishi Motors Corp.'s new vehicle sales in the US fell 46 percent in June
Is this true?
Mitsubishi sales rose 46 percent
OPTIONS:
- yes
- no

Answer:
no
Problem: Former tennis star Vitas Gerulaitis died in such fashion in September, from a lethal carbon monoxide buildup related to the faulty installation of a propane heater.

Based on that paragraph can we say the following?
Vitas Gerulaitis died of carbon monoxide poisoning.

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- yes
- no
****
Answer: yes
Problem: The attacker wore a bullet-proof vest under his clothes and a backpack containing a knife, an axe and a fake pistol. Two other knives were found near the crime scene. The prosecutor confirmed that the man's face was painted white with blackened eyes as he committed the crime, which led international media to make comparisons to the Joker, the villain from the Batman series. "I have a question," the killer told the first employee he encountered, after which he immediately stabbed her, and started his rampage. One female day care worker attempted to disarm the killer while others locked the doors. The killer stabbed employees trying to carry children to safety.

Based on that paragraph can we say the following?
Joker appears in the Batman series.

OPTIONS:
- yes
- no
****
Answer:
yes