stata16字符型变量赋值

Question

求问，3q：
gen str christoth="Christian" if religoth == "CHRISTIAN" | religoth == "JUST CHRISTIAN" | religoth == "NONDENOMINATIONAL CHRISTIAN"
replace christoth="Specific Other Denomination" if christoth ==" " & religoth !=" "
tab christoth
这是我跑出来的：

但实际上是这样的：

为啥跑不出来这个效果qwq