With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Lebanon had a civil war which lasted fifteen years.
text_B: Carmina Burana may refer to  :. Carmina Burana. Carmina Burana. Carmina Burana , a medieval collection of poetry. Carmina Burana. Carmina Burana. Carmina Burana -LRB- Orff -RRB- , a 1935-1936 musical composition by Carl Orff based on some of the poems. Carmina Burana. Carmina Burana. Carmina Burana -LRB- Ray Manzarek album -RRB- , a recording of the Orff piece. Carmina Burana. Carmina Burana
not_related.