I am trying to write an Android app that is able to play mad libs with the user.

The app reads in text from a file that has placeholders instead of the specific words (nouns, adj, etc.) that should be there. The app should have 3 activities, one for the home page that simply has a welcome message and a get started button, another for the input of words that are needed for the mad libs and then the finished mad lib itself. the first page needs a single button that says get started, the second page should be able to read in all the words and the final page should display the mad libs with a button that sends back to the second page to make another story.

after getting the words from the user the app should replace the placeholders with those words to create the mad libs story. with each input the program should replace placeholders until the story is done, and when it is done the mad lib displays