$.$ Examine the following semantics rules $($relation Student$-$Lesson$-$Prof. or SLP$).$for the courses :

a$.$ for each subject $,$ each student of that subject is taught by only one teacher

b$.$ each teacher teaches only one course

c$.$ each subject is taught by several teachers

Please give :

$(1)$ the tabulation SLP

$(2).$what are the functional dependencies in the relation?

$(3)$ is $1$NF$,2$NF$,3$NF$,$ BCNF$?$