Trees and spanning trees

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

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

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

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