Database Relations Normalization

normalize a relation R(A,B,C,D,E,F,G,H,I,J) into 1NF and 2NF FD's

 A,B,C,D->E,F,G,H,I,J  
 B,C,D->E,F  
 A->G,H,I,J  
 E->F 
 H,I->J