preferred_name: 2-LTR formation due to circularization of viral DNA (Homo sapiens)
preferred_name_lc: 2-ltr formation due to circularization of viral dna (homo sapiens)
label: 2-LTR formation due to circularization of viral DNA (Homo sapiens)
label_lc: 2-ltr formation due to circularization of viral dna (homo sapiens)