+-------------------SUBJ:V-N------------------+              
  +-------OBJ:V-N-------+                       +-OBJ:V-N-+    
  |    +MOD_ATT+SUBJ:V-N+--OBJ:V-N-+MOD_PO+     |    +MOD_+    
  |    |       |        |          |      |     |    |    |    
 100 ng/ml __NODE__ decreases expression of __NODE__ 4 levels .
MOD_ATT:N-ADJ (__NODE__,ng/ml)
OBJ:V-N (decrease,@card@)
SUBJ:V-N (decrease,__NODE__)
OBJ:V-N (decrease,expression)
MOD_POST:N-ADJ (expression,of)
SUBJ:V-N (__NODE__,@card@)
OBJ:V-N (__NODE__,level)
MOD_ATT:N-ADJ (level,4)