tolselklosamseltcana lujvo

t2=d2 is a/the wide area network (WAN) that includes nodes t1=d1=s1 whose function/purpose is s2.

See also: selklosamseltcana, samseltcana.


In notes:

samseltcana
t2 is a/the computer network that includes nodes t1=s1 whose function/purpose is s2.
selklosamseltcana
t2=d2 is a/the local area network (LAN) that includes nodes t1=d1=s1 whose function/purpose is s2.