Sentence:[e1]Lesions[/e1] affecting the medial part of the premotor cortex, the SMA and sparing the precentral gyrus caused a contralateral [e2]hemiparesis[/e2] predominating on the leg but predominating proximally on both leg and arm.
 e1: Lesions. 
 e2 : hemiparesis.
Answer: Cause-Effect(e1,e2)