SELECT count(distinct c) as nb FROM t_asv where b = 1 group by b
1 And the man knew Eve his wife; and she conceived, and bare Cain, and said, I have gotten a man with `the help of' Jehovah. 2 And again she bare his brother Abel. And Abel was a keeper of sheep, but Cain was a tiller of the ground. 3 And in process of time it came to pass, that Cain brought of the fruit of the ground an offering unto Jehovah. 4 And Abel, he also brought of the firstlings of his flock and of the fat thereof. And Jehovah had respect unto Abel and to his offering: 5 but unto Cain and to his offering he had not respect. And Cain was very wroth, and his countenance fell. 6 And Jehovah said unto Cain, Why art thou wroth? and why is thy countenance fallen? 7 If thou doest well, shall it not be lifted up? and if thou doest not well, sin coucheth at the door: and unto thee shall be its desire, but do thou rule over it. 8 And Cain told Abel his brother. And it came to pass, when they were in the field, that Cain rose up against Abel his brother, and slew him. 9 And Jehovah said unto Cain, Where is Abel thy brother? And he said, I know not: am I my brother's keeper? 10 And he said, What hast thou done? the voice of thy brother's blood crieth unto me from the ground. 11 And now cursed art thou from the ground, which hath opened its mouth to receive thy brother's blood from thy hand; 12 when thou tillest the ground, it shall not henceforth yield unto thee its strength; a fugitive and a wanderer shalt thou be in the earth. 13 And Cain said unto Jehovah, My punishment is greater than I can bear. 14 Behold, thou hast driven me out this day from the face of the ground; and from thy face shall I be hid; and I shall be a fugitive and a wanderer in the earth; and it will come to pass, that whosoever findeth me will slay me. 15 And Jehovah said unto him, Therefore whosoever slayeth Cain, vengeance shall be taken on him sevenfold. And Jehovah appointed a sign for Cain, lest any finding him should smite him. 16 And Cain went out from the presence of Jehovah, and dwelt in the land of Nod, on the east of Eden. 17 And Cain knew his wife; and she conceived, and bare Enoch: and he builded a city, and called the name of the city, after the name of his son, Enoch. 18 And unto Enoch was born Irad: and Irad begat Mehujael: and Mehujael begat Methushael; and Methushael begat Lamech. 19 And Lamech took unto him two wives: the name of the one was Adah, and the name of the other Zillah. 20 And Adah bare Jabal: he was the father of such as dwell in tents and `have' cattle. 21 And his brother's name was Jubal: he was the father of all such as handle the harp and pipe. 22 And Zillah, she also bare Tubal-cain, the forger of every cutting instrument of brass and iron: and the sister of Tubal-cain was Naamah. 23 And Lamech said unto his wives: Adah and Zillah, hear my voice; Ye wives of Lamech, hearken unto my speech: For I have slain a man for wounding me, And a young man for bruising me: 24 If Cain shall be avenged sevenfold, Truly Lamech seventy and sevenfold. 25 And Adam knew his wife again; and she bare a son, and called his name Seth. For, `said she', God hath appointed me another seed instead of Abel; for Cain slew him. 26 And to Seth, to him also there was born a son; and he called his name Enosh. Then began men to call upon the name of Jehovah.