Full Idea
Linguistics rejects (on theoretical grounds) the intuition that the sentence "the boy the girl the cat bit scratched died" is ungrammatical.
Clarification
Cat bit girl; girl scratched boy; boy died
Gist of Idea
Intuition may say that a complex sentence is ungrammatical, but linguistics can show that it is not
Source
Ned Block (Troubles with Functionalism [1978], p. 78)
Book Reference
'The Philosophy of Mind', ed/tr. Beakley,B /Ludlow P [MIT 1992], p.78
A Reaction
Once we have disentangled it, we practical speakers have no right to say it is ungrammatical. It isn't only theory. The sentence is just stylistically infelicitous.