keys are underlined in each relation. Specify the following queries in relational algebra using above database schema.

1). Find names of sailors who have reserved a RED boat?

2). Find names of sailors who have reserved a RED or a GREEN boat?

2.1) Can also define tempboats using UNION (how?)

2.2) What happens of v is replaced by ^ in this query?

3). Find names of sailors who have reserved a RED and a GREEN boat?

4). Find the names of sailors who have reserved all boats?

5). Find the names of sailors who have reserved all "Interlake" boats?

please solve all the question. don't copy the answer.

Sailors(sid: integer, sname: string, rating: integer, age: real) Boats(bid: integer, bname: string, color: string) Reserves(sid: integer, bid: integer, day: date) Boats: Reserves: Sailors: Sid Sname Rating Age bid bname color sid bid day 22 Dustin 7 45 101 Interlake blue 22 101 1998-10-10 29 Brutus 1 33 22 102 1998-10-10 31 Lubber 8 55.5 102 Interlake red 103 Clipper green 104 Marine red 22 103 1998-10-8 8 25.5 22 104 1998-10-7 32 Andy 58 Rusty 10 35 31 102 1998-11-10 64 Horatio 7 35 31 103 1998-11-6 71 Zorba 10 16 31 104 1998-11-12 74 Horatio 9 40 64 101 1998-9-5 85 Art 3 25.5 64 102 1998-9-8 95 Bob 3 63.5 74 103 1998-9-8