All comparisons are made on strings: <span class="tt wims_code_words">string1 rel string2</span>.
Comparisons can be joined using <span class="tt wims_code_words">and</span> and 
<span class="tt wims_code_words">or</span>. Parentheses may
be used to build complex comparison logics.

:Valid relations
:Relation,Condition
:==
string1  ==  string2  string1  ==  string2
true if <span class="tt wims_code_words">string1</span> and <span class="tt wims_code_words">string2</span> are identical.
:!=
string1  !=  string2  string1  &lt;&gt;  string2
true if <span class="tt wims_code_words">string1</span> and <span class="tt wims_code_words">string2</span> are NOT identical.
:<
string1  <  string2
true if (the numerical evaluation of) <span class="tt wims_code_words">string1</span> is < <span class="tt wims_code_words">string2</span>.
:<=
string1  <=  string2
true if (the numerical evaluation of) <span class="tt wims_code_words">string1</span> is $m_le <span class="tt wims_code_words">string2</span>.
:>
string1  >  string2
true if (the numerical evaluation of) <span class="tt wims_code_words">string1</span> is > <span class="tt wims_code_words">string2</span>.
:>=
string1  >=  string2
true if (the numerical evaluation of) <span class="tt wims_code_words">string1</span> is $m_ge <span class="tt wims_code_words">string2</span>.
:isin
string1  isin  string2
true if <span class="tt wims_code_words">string1</span> is a substring of <span class="tt wims_code_words">string2</span>.
:notin
string1  notin  string2
true if <span class="tt wims_code_words">string1</span> is NOT a substring of <span class="tt wims_code_words">string2</span>.
:iswordof
string1  iswordof  string2
true if <span class="tt wims_code_words">string1</span> is a word of <span class="tt wims_code_words">string2</span>.
:notwordof
string1  notwordof  string2
true if <span class="tt wims_code_words">string1</span> is NOT a word of <span class="tt wims_code_words">string2</span>.
:isvarof
string1  isvarof  string2
true if <span class="tt wims_code_words">string1</span> is a (mathematical) variable of the expression  <span class="tt wims_code_words">string2</span>.
:notvarof
string1  notvarof  string2
true if <span class="tt wims_code_words">string1</span> is NOT a (mathematical) variable of the expression <span class="tt wims_code_words">string2</span>.
:isvariableof
string1  isvariableof  string2
true if <span class="tt wims_code_words">string1</span> is a (mathematical) variable of the expression <span class="tt wims_code_words">string2</span>.
:notvariableof
string1  notvariableof  string2
true if <span class="tt wims_code_words">string1</span> is NOT a (mathematical) variable of the expression <span class="tt wims_code_words">string2</span>.
:isitemof
string1  isitemof  string2
true if <span class="tt wims_code_words">string1</span> is an item of the list <span class="tt wims_code_words">string2</span>.
:notitemof
string1  notitemof  string2
true if <span class="tt wims_code_words">string1</span> is NOT an item of the list <span class="tt wims_code_words">string2</span>.
:islineof
string1  islineof  string2
true if <span class="tt wims_code_words">string1</span> is a line of the list <span class="tt wims_code_words">string2</span>.
:notlineof
string1  notlineof  string2
true if <span class="tt wims_code_words">string1</span> is NOT a line of the list <span class="tt wims_code_words">string2</span>.
:issamecase
string1  issamecase  string2
true if <span class="tt wims_code_words">string1</span> and <span class="tt wims_code_words">string2</span> are the same text by a comparison insensitive to multiple spaces but case-sensitive.
:notsamecase
string1  notsamecase  string2
true if <span class="tt wims_code_words">string1</span> and <span class="tt wims_code_words">string2</span> are NOT the same text by a comparison nsensitive to multiple spaces but case-sensitive.
:issametext
string1  issametext  string2
true if <span class="tt wims_code_words">string1</span> and <span class="tt wims_code_words">string2</span> are the same text by a comparison insensitive to cases, multiple spaces and accented letters.
:notsametext
string1  notsametext  string2
true if <span class="tt wims_code_words">string1</span> and <span class="tt wims_code_words">string2</span> are NOT the same text by a comparison insensitive to cases, multiple spaces and accented letters.

