They can also be used to determine if the child has touched an object at suspected locations.
(They; can also be used; to determine if the child has touched an object at suspected locations) (They; to determine; if the child has touched an object at suspected locations) Context(They to determine,List([0, 34))):(the child; has touched; an object; L:at suspected locations)
They to determine,List([0, 34))
They They the child
can also be used to determine has touched
to determine if the child has touched an object at suspected locations
if the child has touched an object at suspected locations
an object L:at suspected locations