387901
2006 In May 2006 , the Houston Business Journal rated Lopez Negrete Communications as the second largest advertising firm in Houston , and reported that it had a revenue of $ 135 million .
 Houston, Communications, Houston
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Houston, Communications, Houston