These are responses used after a Precision 1C opening.

Over 1C,

1H shows 8+ hcp and 5+ spades

1N shows 8+ hcp and 5+ clubs

2C shows 8+ hcp and 5+ diamonds

2D shows 8+ hcp and 5+ hearts

1S transfer to 1N

If opener accepts the 1S transfer to 1N, then responder starts the Morris Asking No Trump Sequence:

2C Stayman

2D 0 or 4 aces

2H 1 ace 2S 2 aces

2NT 3 aces

To ask for kings (and subsequently for queens, etc) opener re-bids the cheapest suit.