Even more extreme cases are noted in the poetry of Horace, e.g.  Glossed interlinearly, the lines are as follows:  Because of the case, gender and number marking on the various nouns, adjectives and determiners, a careful reader can connect the discontinuous and interlocking phrases "Quis ... gracilis ... puer", "multā ... in rōsā", "liquidīs ... odōribus" in a way that would be impossible in English. The theoretical analysis of scrambling can vary a lot depending on the theory of sentence structure that one adopts. Constituency-based theories (phrase structure theories) that prefer strictly binary branching structures are likely to address most cases of scrambling in terms of movement (or copying). One or more constituents is assumed to move out of its base position into a derived position. Many other theories of sentence structure, for instance those that allow n-ary branching structures (such as all dependency grammars), see many (but not all!) instances of scrambling involving just shifting; a discontinuity is not involved. The varying analyses are illustrated here using trees. The first tree illustrates the movement analysis of the example above in a theory that assumes strictly binary branching structures. The German subordinate clause "weil mich die anderen oft einladen" is used, which translates as "because the others often invite me":  The abbreviation "Sub" stands for "subordinator" (= subordinating conjunction), and "SubP" stands for "subordinator phrase" (= embedded clause). The tree on the left shows a discontinuity (= crossing lines) and the tree on the right illustrates how a movement analysis deals with the discontinuity. The pronoun "mich" is generated in a position immediately to the right of the subject; it then moves leftward to reach its surface position. The binary branching structures necessitate this analysis in terms of a discontinuity and movement. A theory of syntax that rejects the subject-predicate division of traditional grammar (S → NP+VP) and assumes relatively flat structures (that lack a finite VP constituent) instead will acknowledge no discontinuity in this example. Instead, a shifting analysis addresses many instances of scrambling. The following trees illustrate the shifting-type analysis in a dependency-based grammar. The clause from above is again used ("weil mich die anderen oft einladen" 'because the others often invite me'):  The tree on the left shows the object in its canonical position to the right of the subject, and the tree on the right shows the object in the derived position to the left of the subject.