Table 1:

Main syntactical elements of the Lucene library used in the EB-eye.

EB-eye Lucene syntax token	Meaning	Usage	Example
AND ( + )	In addition to	term1 AND term2	glutathione AND transferase
		term1 + term2	glutathione + transferase
OR	Equivalence	term1 OR term2	human OR ‘homo sapiens’
NOT (-)	Exclusion	term1 NOT term2	coding NOT fragment
		term1 –term2	coding -fragment
*	Wild card	partialterm1*	gluta* = (glutathione, glutamate, glutamic… )
?	Replacement	Str?ng	str?ng = (string, strong)
“”	Quoted text	“complete sentence”	“molecular evolution”
()	Grouping	(term1 AND term2) OR term3	(reducatase OR transferase) AND glutathione
Field:	Field searching	fieldname:term	description:dopamine