Brand<br>Anna had always eaten brand name cereal. When she married and had kids, though, her budget tightened. She decided to sample the store brands. To her surprise, they tasted great! Anna started buying nothing but store brands.
The store brand cereal was cheaper than brand name cereal.
Her budget tightened, so she switched from brand name to store brand cereal. This is the logical inference, but since it's not stated outright, the model missed it.
( z1 cheap :ARG1 ( z2 cereal :mod ( z3 brand :mod ( z4 store ) ) ) :ARG2-of ( z5 have-degree :ARG1 z2 :ARG3 ( z6 more ) :ARG4 ( z7 cereal :mod ( z8 name :mod ( z9 brand ) ) ) ) )