6/1	6/8	6/15	6/22
S1	B	S1	S2
S1	B	S1	S2
S1	P	S1	S2
S1	B	S1	S2

7/6	7/13	7/20	7/27
S1	S1	S3	P
S1	S1	S3	P
S1	S1	S3	B
S1	S1	S3	P