The good folks over at Space Force have been recording a Fast$-$Radio$-$Burst $($FRB$)$ signal emanating somewhere from deep space. They have been trying to makes sense of it$,$ but as General Mark R$.$ Naird has so eloquently put it$,$ "space is hard."

So$,$ Space Force needs your help! They need you to extract some information from parts of the signal. A small portion of the signal data is contained in the signal.txt file. See the graph below to get a sense of what the signal data looks like.

Your task is to read the contents of the data file and print out how many signal points are above zero, how many signal points are equal to zero, and how many signal points are below zero.

For example, given the following signal

$210-1$

your code should print out

greater$\_$than$\_$zero $=2$

equal$\_$to$\_$zero $=1$

less$\_$than$\_$zero $=1$

The only module you may use to answer this question is the urllib standard Python library module in order to read the file from the provided link.