Many adults often remember only a few famous sentences in the three hundred Tang Poems that they were familiar with when they were children, but do not know the author or the name of the poem. There are only three grades of master's degree students in the Chinese Department of School A, and the number of students in each grade is equal. Statistics show that all the first-year students can match the famous sentences in the book with the poem names and their authors; the second-year students in 2 /3 can correspond to the famous sentences in the book with the author; and the students in grade 3 in 1/3 can't match the famous sentences in the book with the names of poems.
According to the information above, students in the first and third grades above 2/3 in the Chinese department of the university can match the famous sentences in the book with the names of the poems.