gistfile1.txt

class ServerTails
{
    @SerializedName("user_id")
    private int user_id;

    @SerializedName("body")
    private String body;

    @SerializedName("post_id")
    private int post_id;

    @SerializedName("likes")
    private int likes;

    @SerializedName("dislikes")
    private int dislikes;
}

class ServerPost
{
    @SerializedName("caption")
    private String caption;

    @SerializedName("user_id")
    private int user_id;

    @SerializedName("body")
    private String body;

    @SerializedName("contest_id")
    private int contest_id;

    @SerializedName("tails")
    List<ServerTails> tails;
}