How to prevent hantavirus pulmonary syndrome (hps )<br>Recognize signs of an infestation. Look for small pellets of rodent droppings about ¼-½ " (0.5-1.0 cm) in size. You may also see signs of gnawing on your furniture or rodent tracks in dusty spaces.
Tracks in dusty spaces mean your house is rodent infested.
The text specifies RODENT tracks in dusty spaces; omitting this makes the statement ambiguous and fooled the model.
( z1 mean :ARG1 ( z2 track :location ( z3 space :mod ( z4 dusty ) ) ) :ARG2 ( z5 infest :ARG1 ( z6 house :poss ( z7 you ) ) :ARG2 ( z8 rodent ) ) )