Karel knows the following conditions:
- <#2514#>facing north<#2514#>
True only if Karel's nose presently points to the north;
- <#2515#>facing south<#2515#>
Similarly;
- <#2516#>facing east<#2516#>
Similarly;
- <#2517#>facing west<#2517#>
Similarly;
- <#2518#>facing wall<#2518#>
True only if the next corner contains a wall;
- <#2519#>beeper<#2519#>
True only if there is a beeper lying at the present corner.