s4: Joining Predicates with Conjunctive Forms
Wako Tawa · 2013
As discussed in Stage 1-1, the conjunction と joins only nouns and noun phrases, but may not be used to join predicates or sentences. In the following example, the intent is to join a predicate, ス ミスさんです and another predicate 一年生（いちねんせい）です. と may not be used here because two predicates are joined, rather than two nouns.