The entire work of Panini : Astadhyayi is the set of rules being discussed here. The rules are approx 4000, which have a system of construction of words and sentences. The debate of solving the system is to use it to get the resulting sentences which always differed from reality of actual Sanskrit language.

The student/scholar recently found the right interpretation of the rules, which is what the achievement is. Now the rules and algorithm produce results as prescribed by Panini in his ancient work. It is called a machine cos the rules act as a mechanism acting on a sound based input and producing a meaningful words and sentences as outputs. Hence a machine.