sˈɜːpə kˈɑːnsəntɹˌeɪɾᵻd hɪz pəlˈɪɾɪkəl ˈɛfɚts ɪnðə mˈæɡdeɪlnə mˈiːdɪˌoʊ mˈɪdəl mˈæɡdeɪlnɚ ɹˈiːdʒən, ɐ kənvˈʌlst ɹˈiːdʒən ɪnwˌɪtʃ ðɪ ˌiːˌɛlˈɛn ɡɛɹˈɪlə wʌz bˈɔːɹn.
Serpa concentrated his political efforts in the Magdalena medio (Middle Magdalena Region), a convulsed region in which the ELN guerrilla was born.