'********** composition on both sides of a statement 'Soda is a type of base. base>. 'What is something that can neutralize a base? <(/,neutralization,_,base) --> ?x>? 6 'What can neutraliz base can react with base. ''outputMustContain('<(/,neutralization,_,base) --> (/,neutralization,_,soda)>. %1.00;0.81%')