| http://www.w3.org/ns/prov#value | - Cut-outs 330, 332 may be in the form of circular or other shaped openings formed in the lower most extent 338 of plastic wall 310 of lateral pipe 300 so as to be spaced just inwardly of opposite ends 302, 304, or may alternatively be formed directly at ends 302, 304 so as to extend inwardly therefrom as shown in FIG. 6 at 330??? and 332???.
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