Material advantages categorised

Minor advantage:This advantage can sometimes be a winning advantage while in other situations its not enough for victory.Minor advantages are worth less than half a point.
Examples:
Having:
3 Minor pieces for a queen
A minor piece for 3 pawns.
An empress for a princess
A bishop for a knight
A queen for a rook,a minor piece and a pawn.
2 Rooks for 3 minor pieces.

Material advantages of medium importance:These advantages are a winning advantage in more situations compared to minor advantages,but is a winning advantage in less situations compared to major advantages.Major advantages are worth than less or are equal to one point and worth more than half a point.
Having:
An extra pawn
A queen for a princess
2 Pieces for a rook and a pawn
2 Rooks for a queen
A queen for an empress
2 bishops for 2 knights

Major advantages:Major advantages are a winning advantage in most situations.They are worth more than one point.
Examples:
Having:
2 minor pieces for a rook
A rook for a minor piece
A minor piece for 2 pawns
A queen for a rook and a minor piece
Having an extra minor piece
Having an extra rook
Having an extra queen/princess/empress

What is a princess and empress!?

Princess:Can move like a bishop and a knight combined (called archbishop by some)
Empress:Can move like a rook and a knight combined (called chancellor by some)