preferred_name: Formation of PRC2-EZH2 complex (Xenopus tropicalis)
preferred_name_lc: formation of prc2-ezh2 complex (xenopus tropicalis)
label: Formation of PRC2-EZH2 complex (Xenopus tropicalis)
label_lc: formation of prc2-ezh2 complex (xenopus tropicalis)