The following cipher text was generated using a simple substitution algorithm.

Nbkyrpsrws jifx. Jir kjqqbofr mssmne tiarp syrqr nbpntgqsminrq bq syr optsr$-$cjpnr

mkkpjmny jc spxbih mff kjqqbofr erxq. Bc syr erx qkmnr bq urpx fmphr$,$ sybq ornjgrq

bgkpmnsbnmf$.$ Sytq$,$ syr jkkjiris gtqs prfx ji mi mimfxqbq jc syr nbkyrpsrws bsqrfc$,$

hrirpmffx mkkfxbih umpbjtq qsmsbqsbnmf srqsq sj bs$.$ Eijvi kfmbisrws. Syr mimfxqs gmx

or mofr sj nmkstpr jir jp gjpr kfmbisrws grqqmhrq mq vrff mq syrbp rinpxksbjiq.

Vbsy sybq eijvfrahr, syr mimfxqs gmx or mofr sj aratnr syr erx ji syr omqbq jc syr

vmx bi vybny syr eijvi kfmbisrws bq spmiqcjpgra. Nyjqri kfmbisrws. Bc syr mimfxqs

bq mofr sj nyjjqr syr grqqmhrq sj rinpxks, syr mimfxqs gmx arfborpmsrfx kbne

kmssrpiq syms nmi or rwkrnsra sj prurmf syr qsptnstpr jc syr erx.

Decrypt the message using Cryptool $($Hint: combine with manual analysis$).$