Task: Question Answering
Input (English): Passage: This morning , I was in charge of setting up the presentation equipment for my group project presentation . We were giving a presentation about polar bears to the entire class . We had a Power Point slideshow and a poster board for our presentation . I set my laptop down on the table near the projector , so that I could easily connect the projector cord into my laptop . Once I did that , I grabbed the poster stand that the teacher had resting against the chalkboard . I unfolded the folder stand so that when my project partner arrived , she could put the poster onto the stand . Then I pulled down the projector screen that was above the chalkboard , so our power point would have a clean white background . I used my computer mouse to bring up our Power Point file , so that it would be ready when my partner arrived . When my partner walked into the classroom , I took the poster from her and put it on the stand . We were ready to give our presentation . Question: When did he turn on the projector? Option1: After the presentation was over. Option2: After he pulled down the projector screen
Output (English): After he pulled down the projector screen