Question: How old was Kahekili II's son when his father conquered O'ahu? Passage 1:Anderson was born in Edinburgh in 1832. He studied medicine at the University of Edinburgh, graduating with an MD in 1853. While at University he became interested in botany, and earned a gold medal for the best local collection of plants, and assisted in arranging the Indian herbarium. In 1854 he entered the Bengal medical service, and went to Calcutta. Subsequently he went to Delhi, where he was actively engaged during the mutiny, returning to Calcutta in 1858. His health failing, he came home, and, the steamer being detained at Aden for some days, he made an interesting collection of the plants of that region, upon which he based his ‘Florula Adenensis,’ published in 1860. About this time he returned to India, taking temporary charge of the Calcutta Botanic Garden during the absence of Dr Thomas Thomson, whom he afterwards succeeded as director. His brother, John Anderson was a zoologist.
 Passage 2:The island has been inhabited since at least 3rd century A.D. The 304-year-old Kingdom of Oʻahu was once ruled by the most ancient aliʻi in all of the Hawaiian Islands. The first great king of Oʻahu was Maʻilikūkahi, the lawmaker, who was followed by many generation of monarchs. Kualiʻi was the first of the warlike kings and so were his sons. In 1773, the throne fell upon Kahahana, the son of Elani of Ewa. In 1783, Kahekili II, King of Maui, conquered Oʻahu and deposed the reigning family and then made his son, Kalanikūpule, king of Oʻahu. Kamehameha the Great would conquer in the mountain Kalanikūpule's force in the Battle of Nuʻuanu. Kamehameha founded the Kingdom of Hawaiʻi with the conquest of Oʻahu in 1795. Hawaiʻi would not be unified until the islands of Kauaʻi and Niʻihau surrendered under King Kaumualiʻi in 1810. Kamehameha III moved his capital from Lāhainā, Maui to Honolulu, Oʻahu in 1845. ʻIolani Palace, built later by other members of the royal family, is still standing, and is the only royal palace on American soil.
 Passage 3:The western terminus of SR 84 is located at exit 151 on I-8 in southern Arizona. From this diamond interchange, it heads towards the northeast to an intersection with State Route 347 which heads north to Maricopa. SR 84 acts as the southern terminus of SR 347. SR 84 continues east from this intersection passing a large cattle farming facility, home to Shamrock Farms. Immediately east of the cattle farm, SR 84 enters Stanfield acting as the main street through town. Where the first few miles of SR 84 pass through mostly empty desert much of the landscape east of SR 347 comprises agricultural land. East of Stanfield, SR 84 crosses the southern edge of the Francisco Grande golf resort before crossing over a large irrigation canal on a bridge. Just east of the canal, SR 84 enters the outskirts of Casa Grande. SR 84 then proceeds to curve under the Union Pacific Railroad via a highway underpass. SR 84 reaches its signed eastern terminus at a junction with SR 287 (Pinal Avenue) and SR 387 (Florence Boulevard) in downtown Casa Grande at a traffic controlled intersection. Both SR 287 and SR 387 provide connections to Interstate 10 from SR 84's signed terminus.

Output: 2