4/3	4/10	4/17	4/24
S1	B	S1	S2
S1	B	S1	S2
S1	S1	B	S2
S1	B	S1	S2
S1	B	S1	S2

5/1	5/8	5/15	5/22
S1	P	S1	S3
S1	P	S1	S3
S1	P	S1	S3
S1	P	S1	S3
S1	P	S1	S3