Definition: Given a text, write a compressed version of it in a single sentence.
Input: By age 3 months, a complex communication system is in place in which parent and baby each respond in an appropriate and carefully timed fashion to the other's cues. As a result, babies experience and practice the give-and-take of human conversation.
Output:
By age 3 months, a complex communincation system is in place. As a result, babies experience and practice the give and take of human conversation.