4/4	4/11	4/18	4/25
S1	S1	B	S2
S1	S1	P	S2
S1	S1	B	S2
S1	S1	P	S2

5/2	5/9	5/16	5/23
S1	S1	P	S3
S1	S1	B	S3
S1	S1	P	S3
S1	S1	B	S3