It is this fact that gives metals their good electrical conductivity, and ceramics their poor electrical conductivity.
(It; is; this fact that gives metals their good electrical conductivity, and ceramics their poor electrical conductivity) (this fact; gives; metals; their good electrical conductivity) (this fact; ceramics; their poor electrical conductivity)
It this fact this fact
is gives ceramics
this fact that gives metals their good electrical conductivity, and ceramics their poor electrical conductivity
metals their good electrical conductivity
their poor electrical conductivity