Instruction: Analyze a question and its supporting document. Predicting answerability based on the information provided in the document. Output yes if the document contains relevant information to answer the question, otherwise output no.

Input:
Question: I have bought 10 of them and want to know how to install a dimmer control if they all are in one circuit ?
Document: I was pleased with this purchase. The light colour was as expected and the brightness is comparable to the other 50W Halogen downlighters.I will be purchasing additional units later in a few weeks.
Answer: no