i need to create a tree diagram but i am confused about how to start it

#18. voting at a homeowners’ association meeting, a board member can vote yes, vote no, or abstain on a motion. there are three motions on which a board member must vote.a. determine the number of sample points in the sample space.b. construct a tree diagram and determine the sample space.if all votes are equally likely, determine the probability that a board member votesc. no, yes, no in that order.d. yes on exactly two of the motions.e. yes on at least one motion.

a start:
 
                      yes
                     /
       yes - #2 - no
      /             \
#1 - no - #2    abstain
     \
       abstain - #2 -
 
can you fill in and continue?