Conjunction or connector is another type of formal relation between sentences and perhaps the most apparent is provided by those words and phrases which explicitly draw attention to the type of relationship which exists between one sentence or clause and another. Conjunctions may simply add more information to what had already been said (and, furthermore, add to that) or elaborate or exemplify it ( for example, for instance, thus, in other words). They may contrast new information with old information, or put another side to the argument (or, on the other hand, however, conversely). They may relate new information to what has already been given in terms of causes (so, because, for this reason) or in time (formerly, then, next, in the end). They may indicate a new departure or a summary (by the way, well, to sum up, anyway).