I know what you are thinking, but that's not the meaning lah...
The sign was above a seat that is reserved. Just like the trains and buses in Singapore, where there are seats reserved for disabled and expecting mothers.
The meaning is "The seat is reserved for: (from left to right)
1) Person with injured arm.
2) Person carrying a child
3) Pregnent lady
4) Person with injured leg
Aiyoh!!! What are you thinking of!!!
But i do admit, that picture is a bit misleading... Whahahah...