Instructions: Given a text, write a compressed version of it in a single sentence.
Input: The bookies entered into the spirit of things by jokingly offering 500-to-1 odds against the PM's wife's fourth child being named Ken and being born on his father's birthday.
Output:
The bookies, in spirit, offered 500-to-1 odds against the PM's wife's 4th child being named Ken and born on his father's birthday