Else or else if?

[StevenNani]

#include "BullCowCartridge.h"
#include <string>

 void UBullCowCartridge::BeginPlay() // When the game starts
{
    Super::BeginPlay();
    PrintLine(TEXT("Hello There!!!"));
    PrintLine(TEXT("Welcome to the BullCow Game."));
    PrintLine(TEXT("Guess an 10 letter Isogram."));
    PrintLine(TEXT("Type Your answer and Press Enter."));
    FString HiddenWord = TEXT("Journalist");
}

void UBullCowCartridge::OnInput(const FString& Input) // When the player hits enter
{    
    ClearScreen();

    if (Input == HiddenWord)
    {
        PrintLine(TEXT("You Win"));
    }
    else
    {
        PrintLine(TEXT("You Lose"));
    }
}

the if-else statement doesn’t work. No matter the answer, it outputs the result as ‘You Lose’.

Edit: It seems in BeginPlay(), I shouldn’t write,

FString HiddenWord = TEXT("Journalist");

but this,

HiddenWord = TEXT("Journalist");

What’s the difference?