What is the composition at Valles lava dome?
{'header': ['Name of lava dome', 'Country', 'Volcanic area', 'Composition', 'Last eruption or growth episode'], 'page_title': '', 'section_title': '', 'caption': '', 'rows': [['Chaitén lava dome', 'Chile', 'Southern Volcanic Zone', 'Rhyolite', '2009'], ['Cordón Caulle lava domes', 'Chile', 'Southern Volcanic Zone', 'Rhyodacite to Rhyolite', 'Holocene'], ['Galeras lava dome', 'Colombia', 'Northern Volcanic Zone', 'Unknown', '2010'], ['Katla lava dome', 'Iceland', 'Iceland hotspot', 'Rhyolite', '1999 onwards'], ['Lassen Peak', 'USA', 'Cascade Volcanic Arc', 'Dacite', '1917'], ['Mount Meager lava domes', 'Canada', 'Cascade Volcanic Arc', 'Dacite', '2350 BP'], ['Mount Merapi lava dome', 'Indonesia', 'Sunda Arc', 'Unknown', '2010'], ['Nea Kameni', 'Greece', 'South Aegean Volcanic Arc', 'Dacite', '1950'], ['Novarupta lava dome', 'Alaska ( USA )', 'Aleutian Arc', 'Unknown', '1912'], ['Nevados de Chillán lava domes', 'Chile', 'Southern Volcanic Zone', 'Dacite', '1986'], ['Puy de Dôme', 'France', 'Chaîne des Puys', 'Unknown', 'ca. 5760 BC'], ['Santa María lava dome', 'Guatemala', 'Central America Volcanic Arc', 'Dacite', '2009'], ['Sollipulli lava dome', 'Chile', 'Southern Volcanic Zone', 'Andesite to Dacite', '1240 ± 50 years'], ['Soufrière Hills lava dome', 'Montserrat', 'Lesser Antilles', 'Andesite', '2009'], ['Mount St. Helens lava domes', 'USA', 'Cascade Volcanic Arc', 'Dacite', '2008'], ['Torfajökull lava dome', 'Iceland', 'Iceland hotspot', 'Rhyolite', '1477'], ['Tata Sabaya lava domes', 'Bolivia', 'Andes', 'Unknown', '~ Holocene'], ['Valles lava dome', 'USA', 'Jemez Mountains', 'Unknown', '50,000-60,000 BP']]}