(By Jakob Lesage): "A preposition indicates the relationship of a noun phrase to the verb in a clause. This relationship could be circumstantial (e.g. locative, temporal, etc.) or a core argument function (S, A or P). A preposition precedes the noun phrase it occurs with. Proclitics with this function count as prepositions in Grambank. This means that phonological boundness is not relevant to this question. Circumpositions count both as prepositions and as postpositions. Inpositions (which occur somewhere in between words in a noun phrase) do not count as prepositions. Nouns that express the function of an adposition in a possessive construction (e.g. inside of the car to mean 'in the car') only count if they are visibly grammaticalized and no longer fully behave like nouns. If there is only one preposition, this is enough for a 1 here."