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In this task, you're given an article and an answer. Your task is to generate the fill-in-the-blank question for this answer based on the given article. The blanks are always at the end of the question, and can be filled with more than one word or phrase.

Article: Homework can put you in a badmood , and that might actually be a good thing. Researchers from the University of Plymouth in England doubted whether mood might affect the way kids learn. To find out the answer, they did two experiments with children. The first experiment tested 30 kids. Someshapes were hidden inside a different, larger picture. The kids had to find the small shapes while sitting in a room with either cheerful or sad music playing in the background. To test their mood, the scientists asked the kids to point to one of five faces, from happy to sad. Children who listened to cheerful music tended to point to the smiley faces while the others pointed to the unhappy ones. The researchers found that sad kids took at least a second less to find the small shapes. They also found an average of three or four more shapes. In the second experiment, 61 children watched one of two scenes from a film. One scene was happy, and the other was sad. Just like in the first experiment, kids who saw the sad scene acted better compared to the others. The researchers guessed that feeling down makes people more likely to focus on a problem or difficult situation. Not all scientists agree with them, however. Other studies argued that maybe, that cheerful music in the first experiment distracted kids from finding shapes. While scientists work on finding out the answers, it still might be wise to choose when to do your tasks according to your mood. After eating a delicious ice cream, for example, write an essay.
Answer: whether mood affects their learning ability
Solution: Researchers did experiments on kids in order to find out _ .
Why? It is clearly mentioned in the article that to the check effect of mood on children is the main purpose of the experiment.

New input: Article: Planet English is the world's leading interactive multimedia software package for English language teaching and learning. For Students Planet English uses the latest in multimedia and information technology to support students who wish to learn English for international communication. Planet English is an exciting, high-tech, interactive way of learning English. It contains more than 40 hours of video and audio recordings, over 2,500 0riginal graphics, 3,000 interactive screens and 80 different activity types including real time student voice recordings. For Teachers Planet English is more than just a computer program. It includes a package of resources to complement any Eng-lish language teaching programme. Teachers can easily integrate Planet English with classroom activities using the detailed Teacher's Manual and Student Workbooks. Teachers can also manage the learning experience for students using the unique Planet English Courseware Management System (CMS). The CMS allows teachers to tailor courses to their syllabus and to students' needs by "mapping" content for classes or individuals. Activities and exercises that are relevant to the center's syllabus are then delivered to students in the appropriate lesson, ensuring students "navigate" to the right area of the programme of each lesson. For Educational Managers Planet English is the world's leading Computer Assisted Language Learning (CALL) program. It allows English language teaching centers to enhance the educational quality of teaching programmes, improve learning outcomes and provide professional development for teaching staff. Implementing Planet English allows English language teaching centers to maximize the benefits of computor hardware because it provides teachers and learners with an easy-to-use and highly productive CALL resource.
Answer: introduce an interactive multimedia software for English learners, teachers and managers
Solution:
The main purpose of this passage is to _ .