(By Martin Haspelmath and Susanne Maria Michaelis): "This feature is about the position of a particle that corresponds to the English also or too. The focus particle indicates that its referent is added to a previously mentioned set of referents. The effect of such particles is to focus on a certain constituent, normally a noun phrase or adverbial phrase. (Focus on verbs involves additional complexity and is disregarded in this feature.) For example: John and Lea came to my party; Mary too came. Here Mary is the focused element."