Task: Question Answering
Input (English): Max Anderson is being pursued by a Tyrannosaurus until a fissure vent opens in the ground. When he tries to jump across, he calls out his brother's name before falling into the vent. Ten years later, Max's 13-year-old son, Sean Anderson, visits Max's brother, volcanologist Trevor Anderson. In a box of items that belonged to Max is a book, Journey to the Center of the Earth by Jules Verne. Notes written by Max are found inside the book. In Trevor's volcanology laboratory, a device shows activity on Snæfell, a dormant volcano in Iceland. Trevor and Sean travel to Iceland to investigate. They try to contact Icelandic volcanologist Sigurbjörn Ásgeirsson, but instead encounter his daughter Hannah Ásgeirsdóttir since her father had died some years earlier. It turns out that Sigurbjörn and Max were both Vernians, a group of people who believe the works of Jules Verne to be fact and not fiction. Hannah offers to help them climb the volcano. While the group is hiking up the volcano, a lightning storm forces them to take shelter in a cave. The cave entrance collapses, trapping them in what appears to be an abandoned mine. The trio rappel down a giant hole and ride on out-of-control mine carts, in which the tracks start to branch off in three ways. Hannah and Trevor save each other from dead-ends and Sean reunites with them. They reach the bottom of a volcanic vent filled with different varieties of crystals, including Diamonds. Sean accidentally drops a diamond, which breaks the Muscovite floor, and they begin to fall towards the center of the Earth. The vent eventually becomes a water slide which drops them safely into a lake in the center of the Earth, which turns out to be a completely separate world contained within the Earth. 
Question: What are the full names of the people who rappel down a hole in the mine?
Output (English): Hannah Ásgeirsdóttir, Sean Anderson, Trevor Anderson