This means if it has a screw top (primarily soda and milk bottles) it is OK.
(it; has; a screw top) (This; means; if it has a screw top (primarily soda and milk bottles) it is OK) Context(This means,List([0, 10))):(it; is; OK)
This means,List([0, 10))
it This it
has means is
a screw top
if it has a screw top (primarily soda and milk bottles) it is OK
OK