NationalPark$($ pid, ${?}_{(}),$ name, state, year,rating, entry$\_$fee$)$

BelongTo$($pid$,$ tid ${?}_{(}),$loc

Hiking$($ tid ${?}_{(}),$ name, length, rating$)$

LocIn$($ pid ${?}_{(}),$ cid ${?}_{(}),$loc$)$

Campsite$($cid$,$ name, fee, rating$)$

$($a$)$ Ricardo decides to experience all the campsites in every park he visits. He is not interested in visiting a park that does not have a campsite. However, his budget is $$200$ for camping, could you help him figure out which park he could go to$?$ In addition, you should also list the total cost for him. $($a table consists of the park name and the total cost$)$

$($b$)$ Ricardo now decides to go to national parks in Texas. Same like before, he plans to experience all the campsites in every park he visits. He is not interested in visiting a park that does not have a campsite and his budget is $$200$ for camping. This time, he is in a hurry and only can stay in the park for three days. He plays to try at least one big hiking trail $($more than $8$ hours of hiking time$)$ in the park. Suppose his usual hiking speed is $1$ mile per hour. Could you recommend a list of parks to him along with the total cost? $($a table consists of the park name and the total cost$)$ Hint: He needs sleep every night... do not want to waste campsite money