Using a database of precomputed hashes from sequentially calculated passwords called a(n) an attacker can simply look up a hashed password and read out the text version

Using a database of precomputed hashes from sequentially calculated passwords called a rainbow table, an attacker can simply look up a hashed password and read out the text version. Each column in the rainbow table uses a different reduction function. The function of the table is reversing cryptographic hash functions. 

Just trying to get some points : p sorry bro