Trees and spanning trees

Vertices in listed order: [F | A | E | B | G]. Full edge list: B–E, E–A, G–F, F–A

Vertices in listed order: [F | A | E | B | G]. Full edge list: B–E, E–A, G–F, F–A, F–E

Vertices in listed order: [F | A | E | B | G]. Full edge list: B–E, E–A, F–A

Vertices in listed order: [F | A | E | B | G]. Full edge list: B–E, E–A, G–F, F–A, B–E