List the names of all target users.
select distinct t1.name from useracct as t1 join trust as t2 on t1.u_id = t2.target_u_id
Include the trust scores for each target user.
select t1.name, t2.trust from useracct as t1 join trust as t2 on t1.u_id = t2.target_u_id
List the name and average trust score for each target user.
select t1.name, avg(trust) from useracct as t1 join trust as t2 on t1.u_id = t2.target_u_id group by t2.target_u_id