Functions of prepositions in the english language

Behind the fence, the children jeered at the soldier

Disjunct

Disjunct is an adjunct and one of syntactic functions of prepositional phrases that especially expresses about concession (in spite of, despite, for+all, with+ all, not with standing), reference (with regard to, with reference to (formal), as to, as for, exception and negative condition

Adverbial

Adverbials are different from the other functions (Subject, Object, and Complement) since they are most of the time optional. Quirk et al. Identify these elements as having:

a. range of semantic roles;

b. propensity for multiple occurrence in the same clause;

c. range of realization forms;

d. range of possible positions in the clause;

e. distinctive grammatical functions;

f. flexibility for use in information processing and in displaying textual connections. ¹⁴(Quirk)

Since these elements are optional, they can occur more than once in a single clause and can have different positions as well.