Complex sentence: It is connected with Hong Kong via the KCRC Guangdong Through Train service from Foshan Railway Station, an inter-city train service was extended from Guangzhou to Foshan in the 1990s.
Split into simpler sentences: It is connected with Hong Kong via the KCRC Guangdong Through Train service from Foshan Railway Station. The inter-city train service was extended from Guangzhou to Foshan since the 1990s.