How to stop a dog chase from becoming an attack<br>Stand still and stay calm. If a dog is chasing you, standing still is probably the last thing you think you should do. You may feel like you're now an easy target for the dog.
Dogs will not attack you if you stand still and stay calm
The context only implies that this is the best method of trying to prevent a dog attack, but does not state that it always works. You could stand still and still get attacked. The system could likely not make this jump of logic. 
( z1 attack :polarity - :ARG0 ( z2 dog ) :ARG1 ( z3 you ) :condition ( z4 and :op ( z5 stand :ARG1 z3 :ARG2 ( z6 still ) ) :op ( z7 stay :ARG1 z3 :ARG3 ( z8 calm :ARG1 z3 ) ) ) )