6506
Unlike Fut4 ( - / - ) Fut7 ( - / - ) mouse neutrophils , however , human knockdowns lacking FUT4 and FUT7 only exhibited partial reduction in rolling interaction on E - selectin .
 None
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 None