Boko vs ISWAP

Boko

name
  • A people of Benin and Nigeria. 

  • Boko Haram. 

  • A district in the Pool region of southeastern Republic of the Congo. 

  • The Latin script alphabet used for the Hausa language. 

  • A town in the Niangoloko Department, Comoé Province, in southwestern Burkina Faso. 

  • A Mande language spoken by the Boko people. 

noun
  • A member of the Boko people. 

ISWAP

name
  • A branch of the Islamic State based in northeast Nigeria 

How often have the words Boko and ISWAP occurred in a corpus of books? (source: Google Ngram Viewer )