examine critically the conceptual and analytical similarities and differences between at least two of the key pioneers (Goffman, Sacks, Gumperz) with regard to studying social interaction in naturally occuring settings. At the outest, formulate what specific analutical concepts your discussion will focus on e.g ( frame, footing, interaction order, structure of experience, role distance, member''s method, adjacency pairs, conditional relevance, indexicality, intersubjectivity, contextualisation cue, conversational inference, speech community) in selecting the analytical concepts, allow for in-depth discussion rather than encyclopaedic coverage. provide illustrative examples to substantiate your argument.