Nico trains 537 nigerians on indigenous language in 2017

I think there may be a mistake here. Nico is not a person who trains people on indigenous languages. Nico is a name, and it's unlikely that someone with that name trained 537 Nigerians on indigenous languages in 2017.

Could you please provide more context or clarify who Nico is and what organization or institution they are affiliated with? Additionally, it would be helpful to know what indigenous language(s) were being taught and where the training took place.

I'm here to help and provide accurate information, but I need more details to do so.