P3I1P3E1L1I1N1E1
12 points
PIPELINE is validvalid
to convey by a line of pipe [v PIPELINED, PIPELINES, PIPELINING]
to convey by a line of pipes [v PIPELINED, PIPELINING, PIPELINES]
to convey by a line of pipe [v PIPELINED, PIPELINES, PIPELINING]
to convey by a line of pipes [v PIPELINED, PIPELINING, PIPELINES]