MEMBER thing1 thing2

If thing2 is a word or list and if MEMBERP with these inputs would output TRUE, then MEMBER outputs the portion of thing2 from the first instance of thing1 to the end. If MEMBERP would output FALSE, then MEMBER outputs the empty word or list according to the type of thing2. It is an error for thing2 to be an array.

SHOW MEMBER "b [a b c d]
[b c d]

SHOW MEMBER "c [a b c d]
[c d]

SHOW MEMBER "b "abba"
bba