The site was swampy and mosquito-ridden, and, after a number of outbreaks of disease, his fellow colonists abandoned him and moved to the future capital city.
The site was clear of any swampy ground.
mnli hypothesis: The site was clear of any swampy ground. premise: The site was swampy and mosquito-ridden, and, after a number of outbreaks of disease, his fellow colonists abandoned him and moved to the future capital city.