As an example, say if we want to understand consumers' viewpoints related to certain phenomenon, and we take and analyze their comments pertaining to that from their public social media posts. In addition, say, we do semi-structured interviews of employees of the firm to understand their perspective on the similar issues. Is it possible in such cases to mix these data sources and code them together to draw out common themes emerging out of these two diverse sources of data? If yes, please share few examples.