940
Thrombin also binds to GpIbalpha on the surface of platelets , thought to act as a co - factor that localizes the enzyme on the platelet surface and accelerates the hydrolysis of PAR - 1 ( 9 ) .
 Anatomy: surface; Anatomy: platelets; Anatomy: platelet surface
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Anatomy 
Text: {0} 
Answer:
 Anatomy: surface; Anatomy: platelets; Anatomy: platelet surface