1984
In a match against Everton he received mild concussion after a clash with Tim Cahill and had to be stretchered off .
 organization: Everton; person: Tim Cahill
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 organization: Everton; person: Tim Cahill