Complex sentence: On 5 December 2017, the International Olympic Committee (IOC) announced that the Russian Olympic Committee was suspended with immediate effect based on the findings of an Inquiry Commission chaired by Samuel Schmid.
Split into simpler sentences: On 5 December 2017, the International Olympic Committee (IOC) announced that the Russian Olympic Committee was suspended with immediate effect. The IOC said the decision was made based on the findings of an Inquiry Commission chaired by Samuel Schmid.