“I eat most of my meals on the train!” said Nisse Greenberg, 25, between bites of a falafel sandwich yesterday on the N line.
What does between bits mean?
It's not clear to me.
It could have been the N Line on the New York subway.
Note that Americans often misunderstand the meaning of the word 'subway' when it's used by speakers of BrE.
...especially in view of the chain of fast-food shops called Subway!
I've had second thoughts about the falafel sandwiches - they're probably quite common at the northern end of London's Northern Line (big Jewish community).