Complex sentence: From 1986 to 2008, many cuprate superconductors were identified, the most famous being yttrium barium copper oxide (YBa 2 Cu 3 O 7, "YBCO" or "1-2-3").
Split into simpler sentences: From 1986 to 2008, many cuprate superconductors were identified. Most famous is yttrium barium copper oxide (YBa 2 Cu 3 O 7, "YBCO" or "1-2-3").