Question: Extract the answer to the question from the following context. Question: What method was used to teach Rico a new object? Context: Dog intelligence is the ability of the dog to perceive information and retain it as knowledge for applying to solve problems. Dogs have been shown to learn by inference. A study with Rico showed that he knew the labels of over 200 different items. He inferred the names of novel items by exclusion learning and correctly retrieved those novel items immediately and also 4 weeks after the initial exposure. Dogs have advanced memory skills. A study documented the learning and memory capabilities of a border collie, "Chaser", who had learned the names and could associate by verbal command over 1,000 words. Dogs are able to read and react appropriately to human body language such as gesturing and pointing, and to understand human voice commands. Dogs demonstrate a theory of mind by engaging in deception. A study showed compelling evidence that Australian dingos can outperform domestic dogs in non-social problem-solving experiment, indicating that domestic dogs may have lost much of their original problem-solving abilities once they joined humans. Another study indicated that after undergoing training to solve a simple manipulation task, dogs that are faced with an insoluble version of the same problem look at the human, while socialized wolves do not. Modern domestic dogs use humans to solve their problems for them.
Answer: exclusion learning

Question: Extract the answer to the question from the following context. Question: In what month did Espartero's rule end? Context: During the regency of Maria Cristina, Espartero ruled Spain for two years as its 18th Prime Minister from 16 September 1840 to 21 May 1841. Under his progressive government the old regime was tenuously reconciled to his liberal policies. During this period of upheaval in the provinces he declared that all the estates of the Church, its congregations, and its religious orders were national propertythough in Valencia, most of this property was subsequently acquired by the local bourgeoisie. City life in Valencia carried on in a revolutionary climate, with frequent clashes between liberals and republicans, and the constant threat of reprisals by the Carlist troops of General Cabrera.
Answer: May

Question: Extract the answer to the question from the following context. Question: How many jobs have casinos created in this state? Context: Atlantic City is considered as the "Gambling Capital of the East Coast," and currently has eight large casinos and several smaller ones. In 2011, New Jersey's casinos employed approximately 33,000 employees, had 28.5 million visitors, made $3.3 billion in gaming revenue, and paid $278 million in taxes. They are regulated by the New Jersey Casino Control Commission and the New Jersey Division of Gaming Enforcement.
Answer:
33,000