Concept:Use the conditions to determine the exact seating order and identify the neighbors of F.
Explanation:Assume "between" means the middle child sits adjacent to the other two (e.g., B is between F and D means F‑B‑D or D‑B‑F).
The two triples (F,B,D) and (A,E,C) must each be consecutive and can be placed in the row in two possible orders (triple1 then triple2 or vice versa), each with two orientations.
Test all four valid arrangements under the extra conditions (A not next to F or D, C not next to D).
Only two arrangements satisfy all conditions:
1) D, B, F, C, E, A → F sits between B and C.
2) A, E, C, F, B, D → F also sits between B and C.
Thus F is always between B and C.
Answer:F is sitting between B and C.