Transform the following propositions according to the instructions. Also indicate if the transformed proposition is true, false or indeterminate, if the original is False

a. the SUBALTERN of "no logic teachers are unhappy guys"

b. the CONTRAPOSITIVE of "some insecure people are unfriendly"

c. the CONVERSE of "some unhappy people are unfriendly"

d. the OBVERSE of "none of the campers are happy"

e. the CONTRADICTORY of "some unpalatable vegetables are not digestible"