28769
The Gd - PSQ particles , PSQ - 1 and PSQ - 2 , carry 53 . 8 wt % and 49 . 3 wt % of Gd - DTPA derivatives , respectively .
 Chemical: Gd - PSQ; Chemical: Gd - DTPA
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: Gd - PSQ; Chemical: Gd - DTPA