7408
In addition , some macromolecules are considered as potential anti - HIV agents , including lectins from algae and marine invertebrates , as well as sulfated polysaccharides from algae .
 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