instruction:
In this task, you're given a context passage, followed by a question that needs to be answered. Based on the paragraph, you must write unambiguous answers to the questions and your answer must refer to a specific phrase from the paragraph. If multiple answers seem to exist, write the answer that is the most plausible.
question:
Lee found their friends outside and playing in the park nearby. 
Question: What does Lee need to do before this?
answer:
let his parents know that he was going to try to find their founds


question:
I am not always going to understand everything immediately new and old things will have different meaning with time , it's OK . I refuse to call or contact her but one day I think it will be necessary for the sake of something I don't know . But one night I almost emailed her and told her that that I wish things would have turned out differently between us and blah blah blah . 
Question: Why do I refuse to call or contact her ?
answer:
Because I disapprove of something she did .


question:
Mohinder gasped softly as he watched the serum disappear from the tube and into his veins . It felt strange for a few moments after ... tingly . Mohinder wondered how he'd test it , then he thought that he could at least take a sample of his own blood to see if anything had changed within . Quickly , he rushed back inside but in his excitement to see the results of his experiment -- he tripped and his body started to head straight for the tall glass window . 
Question: What may have caused Mohinder to trip ?
answer:

The strange substance intoxicated him .