A president awarded the chalk on a chair to Ella .
* chalk ( x _ 4 ) ; president ( x _ 1 ) AND award . agent ( x _ 2 , x _ 1 ) AND award . theme ( x _ 2 , x _ 4 ) AND award . recipient ( x _ 2 , Ella ) AND chalk . nmod . on ( x _ 4 , x _ 7 ) AND chair ( x _ 7 )