Assertion: port's service | /r/HasProperty | special
Facets:
Source sentences:
text: It is very important to know the ports that are open on your computer because some ports are associated with special services and these ports have to be open for your computer to run properly.
text: Apart from the ports that are used for special services, all other ports should be closed because the more open ports you have on your system, the more vulnerable it will be to hacking.