6/2	6/9	6/16	6/23
S1	B	S1	S2
S1	B	S1	S2
S1	P	S1	S2
S1	B	S1	S2

7/7	7/14	7/21	7/28
S1	S1	S3	P
S1	S1	S3	P
S1	S1	S3	B
S1	S1	S3	P