Question: What is the population of the town in ghana where  71 people were killed and 13 others injured in a head-on collision between a bus and a truck  on 18 February 2016?
Sentence (from "2016 Ghana bus collision"): At least 71 people were killed and 13 others injured in a head-on collision between a bus and a truck in Ghana on 18 February 2016.
Relevant evidence: Yes