rb is a thin wrapper around the Rainbird API, making it suitable for terminal use.
rb help gives a list of available commands and information on usage. An example of a complete session with the Speaks map might be:
> export RB_SESSION=$(rb start aaaaaaaa-bbbb-cccc-dddd-eeeeeeeeeeee "") && echo $RB_SESSION ffffffff-gggg-hhhh-iiii-jjjjjjjjjjjj > rb query $RB_SESSION John speaks "" QUESTION: Where does John live? (John - lives in - ?) > rb response $RB_SESSION John 'lives in' England 100 ANSWERS: John - speaks - English [ 75%]
There is no documentation for this package.