Sentence:  Dewey Urban has a clever green trotter in Dr. Orin I. , 3 ( by Yankee Hanover ) , his latest mile in 2 : 20 ; Victory Sun , p , 2 : 04 has <WSD>trained</WSD> in 2 : 24 ; Early Sun , p , 2 : 02.3 , Chester Maid 2 : 05 , Dark Sun , p , 2 : 06.1 , and Sun Tan Maid 2 : 05.2 have been in 2 : 21 . 
Meaning of the word marked with <WSD> tags:  develop (children's) behavior by instruction and practice; especially to teach self-control