The MISC@1 NUMBER@1 alternating current electric multiple units -LRB- EMUs -RRB- were built by ORGANIZATION@1 at ORGANIZATION@2 in two batches , from NUMBER@2 and NUMBER@3 .

The British Rail Class NUMBER@1 electric multiple units were built by ORGANIZATION@1 at ORGANIZATION@2 in two batches , from NUMBER@2 and NUMBER@3 .
