Sentence:  In its ruling , the state Board of Education upheld Dr. Michael F. Walsh , state commissioner of education , who had ruled previously that the Warwick board <WSD>erred</WSD> when it named Maurice F. Tougas as coordinator of audio-visual education without first finding that the school superintendent 's candidate was not suitable . 
Meaning of the word marked with <WSD> tags:  to make a mistake or be incorrect