I went out into the corridor, but all the other carriages were full, so I had to go back and sit down.
"After I saw that all the other carriages were full and none of the occupants paid me any attention, I went back and took a seat."
mnli hypothesis: "After I saw that all the other carriages were full and none of the occupants paid me any attention, I went back and took a seat." premise: I went out into the corridor, but all the other carriages were full, so I had to go back and sit down.