The multiple alignments and trees of query and database sequences are in the "Unknown sequences alignments and trees" folder which was created when you ran the analysis. You can open the tree from the results table by clicking the Alignment and Tree link next to each results table. Open the tree for the overall result for Unknown 2 in a new window so that you can see it clearly. The query sequence (Unknown2) is highlighted in green. Zoom in using the tree viewer controls to the right of the viewer, and you can see that this sequence falls in a clade containing A. mantelli sequences.
This tree can be manipulated in the same way as any tree document in Geneious. If you wish to view the alignment which underlies the tree, click the Alignment tab above the tree viewer
Congratulations, you have now completed the sequence classifier tutorial.