( ( A solution ) ( ( is ( defined ( as ( ( a ( homogeneous mixture ) ) ( of ( ( ( ions or ) molecules ) ( of ( ( ( two or ) more ) substances ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT A) (NN solution)) (VP (VBZ is) (VP (VBN defined) (PP (IN as) (NP (NP (DT a) (JJ homogeneous) (NN mixture)) (PP (IN of) (NP (NP (NNS ions) (CC or) (NNS molecules)) (PP (IN of) (NP (QP (CD two) (CC or) (JJR more)) (NNS substances))))))))) (. .)))
A solution is defined as a homogeneous mixture of ions or molecules of two or more substances.
(ROOT (S (NP (NN Solution)) (VP (VBZ is) (NP (NP (DT the) (NN term)) (PP (IN for) (NP (NP (DT a) (JJ homogeneous) (NN mixture)) (PP (IN of) (NP (QP (CD two) (CC or) (JJR more)) (NNS substances))))))) (. .)))
Solution is the term for a homogeneous mixture of two or more substances.