This workflow pulls tweets from Twitter API based on some predefined queries. The required keywords concatenate with a time-period, and geolocation then feeds into the Twitter Search node for pulling data. To overcome the "reach limitation error from" Twitter API, there is a wait node which holds the process for 15 minutes in each iteration.
You will need to sign-in with your twitter account at dev.twitter.com and register your application under “My Applications” in order to acquire your API Key and Access Token. The API key should be immediately available and access tokens may be generated and revoked as needed. Both should be available from the API Keys tab of the page for your application.