First of all, I thank you for offering an invaluable resource for free. Second, a question: is "Teachers get sex and drug advice" really a case of structural ambiguity? The ambiguity seems to hinge on the two senses of the lexeme 'get' ('receive' vs 'understand' ).
Sir, thank You for answering my question about the trees. I've got more:1. What's the difference between an oblique object & indirect object?2. Although he studied hard, John failed the exam. Why not "Although John studied hard, he failed he exam"? 3. In the sentence "Also nouns can have valency" , why is also at the beginning of the sentence? Also usually comes after the first auxialiary or modal verb & before the main verb, so the correct syntax is "nouns can also have". Is there a new rule about "also"?