Is the sentiment reflected in the input text positive?

Input: By Tanya Agrawal July 21 (Reuters) - Weak results from IBM and United Technologies weighed on the Dow and the S&amp;P 500 while the Nasdaq
By Tanya Agrawal July 21 (Reuters) - Weak results from IBM and United Technologies weighed on the Dow and the S&amp;P 500 while the Nasdaq