In contrast, predator $P_{2}$ has the rabbit within its perceptual field and will devour it {\em unless} the rabbit makes a sudden movement, in which case $P_{2}$ will lose track of the rabbit's location.
($P_{2; has; the rabbit within its perceptual field) ($P_{2; will devour; it) (the rabbit; makes; $ has the rabbit within its perceptual field and will devour it {\em unless} the rabbit makes a sudden movement, in which case $P_{2}$ will lose track of the rabbit's location) ($P_{2; will lose; track of the rabbit's location)
$P_{2 $P_{2 the rabbit $P_{2
has will devour makes will lose
the rabbit within its perceptual field
it
$ has the rabbit within its perceptual field and will devour it {\em unless} the rabbit makes a sudden movement, in which case $P_{2}$ will lose track of the rabbit's location
track of the rabbit's location