Scanf.scanf "%d" (fun n ->
    let lis = [ "ne"; "ushi"; "tora"; "u"; "tatsu"; "mi"; "uma"; "hitsuji"; "saru"; "tori"; "inu"; "i" ] in
    let rec loop i acc = function
        | [] -> acc
        | hd :: tl -> loop (i + 1) ((hd, i) :: acc) tl
    in
    let assoc = loop 0 [] lis in
    let hist = Array.make 12 0 in
    for i = 1 to n do
        Scanf.scanf " %s" (fun s ->
            let q = List.assoc s assoc in
            hist.(q) <- hist.(q) + 1
        )
    done;
    let q = Array.fold_left (fun acc v ->
        if v > (n + 1) / 2 then true else acc) false hist in
    print_endline @@ if q then "NO" else "YES"
)