Definition: This task involves creating answers to complex questions, from a given passage. Answering these questions, typically involve understanding multiple sentences. Make sure that your answer has the same type as the "answer type" mentioned in input. The provided "answer type" can be of any of the following types: "span", "date", "number". A "span" answer is a continuous phrase taken directly from the passage or question. You can directly copy-paste the text from the passage or the question for span type answers. If you find multiple spans, please add them all as a comma separated list. Please restrict each span to five words. A "number" type answer can include a digit specifying an actual value. For "date" type answers, use DD MM YYYY format e.g. 11 Jan 1992. If full date is not available in the passage you can write partial date such as 1992 or Jan 1992. If you find multiple spans, please add them all as a comma separated list. Please restrict each span to five words.
Input: Passage: The Cambodian-Spanish War was an attempt by the Spanish Empire to conquer Cambodia, establish their own king, and Christianize the population. Along with the Spanish, the Japanese, Filipinos, Thai, Portuguese, and Dominicans participated in the invasion of Cambodia. Each country possessed different motives for their invasion of Cambodia. Specifically, the Thai interference and the Spanish expedition was a result of a power struggle between rival factions in Cambodia's government. In addition, both Spanish and Portuguese took part in the invasion of Cambodia because King Philip II ruled both Spain and Portugal. In February 1593, Thai ruler Naresuen attacked Cambodia in order to fight the Burmese. Later on, in May 1593, 100,000 Thai soldiers invaded Cambodia. As a result of the Thai's invasion, Lovek was conquered in July 1594. In 1593, the Spanish expedition led by Gregorio Vargas Machuca and Blas Ruiz de Hernan Gonzales entered Cambodia through the city of Manila.Although the Spanish invasion of Cambodia failed, Ruiz and Veloso succeeded in establishing king Barom Reachea II in May 1597. Private individuals of Muslim Malays, Chams, Cambodians retaliated to Spain and Portugal's invasion by slaughtering the Spanish and Portuguese, including Diogo Veloso. Only a few Filipinos and one Spaniard survived the massacre. Because of the massacre, Spain's planned Christianization of Cambodia failed. After the attack, Cambodia came under the dominance of the Thai in July 1599.
Question: How many people succeeded in establishing king Barom Reachea II in May 1597?
Answer type: Number
Output:
2.