Please help me make this Priest macro shorter

Hi all,

I’m trying to merge PWS and SWP into one button but due to the length of the name of those two spells, it doesn’t fit into 255 characters. Are there any abbreviations for Power Word: Shield or Shadow Word: Pain? If not, can someone help me to identify a way to make the macro below shorter?

#showtooltip [spec:3] Shadow Word: Pain; Power Word: Shield
/cast [mod:alt,@player]Power Word: Shield
/cast [@mouseover,help,nodead]Power Word: Shield;[@mouseover,harm,nodead]Shadow Word: Pain;[help,nodead]Power Word: Shield;[harm,nodead]Shadow Word: Pain;[@player]Power Word: Shield

Thanks in advance!

#showtooltip
/cast [mod:alt,@player] [@mouseover,help,nodead] Power Word: Shield; [@mouseover,harm,nodead] [harm] Shadow Word: Pain; Power Word: Shield

Thanks a lot!