Student, S	Teacher, T
1	S1	T1, T2, T3
2	S2	T4, T5, T6
3	S3	T7, T8, T9
4	S4	T10, T11, T12
5	S5	T13, T14, T15
6	S6	T16, T17, T18

Produce a graph to show the problem. The teachers must attend all the meetings with students without clashes. It is not compulsory for Guardians to attend. Schedule the timetable without clash for Teachers to meet the Students with the following conditions:-

1. Within 3 days, 2 slots/day, 3 meeting rooms for 3 parallel presentations