Complex sentence: Lewis Hamilton was quickest in the second session on Friday afternoon, as track temperatures rose by more than 20 ° C (36 ° F) to almost 50 ° C (122 ° F) at the end of the session.
Split into simpler sentences: Lewis Hamilton was quickest in the second session on Friday afternoon. Track temperatures rose by more than 20 ° C (36 ° F) to almost 50 ° C (122 ° F) at the end of the session.