1. The company specializes in [T training that has 30 instructors and can handle up to 100 trainees per training session. The company offers five advanced technology courses, each of which is taught by a teaching team of two or more instructors. Each instructor is assigned to a maximum of two teaching teams or may be assigned to do research. Each trainee undertakes one advanced technology course per training session. (a) ldentify the main entity types for the company (b) Identify and draw the main relationship types between the entity types, multiplicity constraints and superclass/subclass constraints in an EER