Partial Plagiarism: When a person combines data from two or three different sources in his work, it amounts to partial plagiarism. This kind of plagiarism pertains to copying someone else's work, not fully, but partly. A person plagiarizing content in this way, makes rampant use of paraphrasing, which means that he presents the same idea in a different form, by manipulating the language of the original content, but the flow remains the same. This, he does in most cases by making use of synonymous vocabulary or changing sentences from active to passive voice and vice versa. In this way, the author does try to be original, but again the work does not contain any first-hand research. Inadequacy of knowledge on the particular subject is a common reason for the occurrences of partial plagiarism.