A language model approach will learn grammatical/syntactic and semantic patterns at the same time. So "dog walks man" will be less likely than "man walks dog",

A language model approach will learn grammatical/syntactic and semantic patterns at the same time. So "dog walks man" will be less likely than "man walks dog", even though both are valid, grammatically. I think what op was asking for was a mechanism to purely learn grammar, which is more in the realm of GOFAI/old school NLP.