Stratford and Stratford International, as demonstrated by the current issue of RAIL (page 9) which has an article headlined ""£2m to ease Stratford International congestion" and repeats the "I" word three times in the article, which informs us that the station is "the busiest in London outside the main termini" and is an "interchange between the Central and Jubilee Lines, the Overground, the DLR, Greater Anglia main line services and TfL Rail"
The same issue of RAIL, (page 24) has "A peek at new [Nexus] Metro trains". The photograph to which that is the caption is doubtless of Stadler's factory at St Margrethen where the Nexus trains are to be built, but the only trains visible are two FLIRTs, (one in Greater Anglia colours and another in a livery I don't recognise, complete with diesel powerpack and built to continental loading gauge so evidently not intended for Tyneside!), and what looks like a Swiss RABe 501"Giruno" (which Stadler market under the "SMILE" acronym - Schneller Mehrsystemfähiger Innovativer Leichter Expresszug (“Speedy Multi-system Innovative Lightweight Express")
We also see a photo of "Euston" Underground station with a train of "S" stock in the platform, which would be a tight squeeze to say the least!.