Install Requirements

Python 3.x.x

sudo apt-get update
sudo apt-get install python3

Python 3.x.x-dev

sudo apt-get update
sudo apt-get install python3-dev

MongoDB v3.x

sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv 0C49F3730359A14518585931BC711F9BA15703C6
echo "deb [ arch=amd64 ] http://repo.mongodb.org/apt/ubuntu "$(lsb_release -cs)"/mongodb-org/3.4 multiverse" | sudo tee /etc/apt/sources.list.d/mongodb-org-3.4.list
sudo apt-get update
sudo apt-get install -y mongodb-org

PostgreSQL

sudo apt-get update
sudo apt-get install postgresql postgresql-contrib

Create PostgreSQL Role for KB access

sudo -u postgres createuser -sdP semantic_kb

When prompted for a password, type password as semantic_kb. If a different password is entered, update the PASSWORD variable in core/api/postgres_api.py with that password.