network: 0.883
performance: 0.678
mistranslation: 0.561
virtual: 0.470
semantic: 0.449
user-level: 0.329
permissions: 0.315
architecture: 0.296
TCG: 0.295
graphic: 0.288
KVM: 0.282
vnc: 0.282
VMM: 0.240
risc-v: 0.236
device: 0.214
ppc: 0.197
PID: 0.189
i386: 0.175
socket: 0.157
arm: 0.154
peripherals: 0.151
hypervisor: 0.139
register: 0.120
debug: 0.105
x86: 0.100
files: 0.090
boot: 0.089
kernel: 0.080
assembly: 0.069

-net option doesn't work