Lesson 1 CABDD BDAAC AB

Lesson 2 BCBDC ACAAD BC

Lesson 3 CABDA CDABA CD

Lesson 4 ACCAB BCDAA BD

Lesson 5 CABAB DACBB DD

Lesson 6 CACCC AAADB AA

Lesson 7 DCABA BACDA AC

Lesson 8 BDABD BAABC BC

Lesson 9 CDBAA CABAC AD

Lesson 10 CAABD CBBDC AA

Lesson 11 AABDD DADDB DD

Lesson 12 CABAC CDACA AB

Lesson 13 ACDAC BDABC AD

Lesson 14 DBDCC ACCBD BD

Lesson 15 CADCD DBACA CA

Lesson 16 ABCCA DDBAB AC

Lesson 17 BBADA BBDCD CA

Lesson 18 BABCD CDCCC BA

Lesson 19 BBCAD AABDD BC

Lesson 20 BCADC CCBDB CA

Lesson 21 BDBBA ADDAB CA

Lesson 22 CDACB ADBCD AB

Lesson 23 CADCC DCABC AC

Lesson 24 AACCB CADDA CD

Lesson 25 DBADD CACDB CA

Lesson 26 CBCBA CDDAB AC

Lesson 27 BCDCC ACCDD DA

Lesson 28 ADCDA BCADA BD

Lesson 29 CCADD CCADA BC

Lesson 30 CABDD BCCAC DC

Lesson 31 AABAD BADDC BD

Lesson 32 BDCBA DBDCA BC

Lesson 33 BDBAD BCCDC BA

Lesson 34 DCACB DACDB CA

Lesson 35 CBCAC ABBDC CD

Lesson 36 ACBCC ACCDB AC

Lesson 37 CABAC DBCDC BD

Lesson 38 CAABB ACBDD AB

Lesson 39 BCADA BDDBD BC

Lesson 40 DCDAC ADDDA DB

Lesson 41 ACACD CBBBD BC

Lesson 42 BCCBD BDADC AC

Lesson 43 DBABC CDDAC BB

Lesson 44 AAAAB BBBDC BA

Lesson 45 CADAC CACDC DC

Lesson 46 BBDBD ABCDA BD

Lesson 47 CAADB CACDB BC

Lesson 48 CCBCC CCDBA AB