sample	group
NSC.3	MOT
NSC.4	MOT
MOT1.1	MOT
MOT1.2	MOT
MOT2.1	MOT
MOT2.2	MOT
MOT3.2	MOT
MOT3.1	MOT
NSC.2	OLD
NSC.1	OLD
OLD1.2	OLD
OLD1.1	OLD
OLD2.1	OLD
OLD2.2	OLD
OLD3.1	OLD
OLD3.2	OLD