[20180407]Search Engine

DESCRIPTION: We are trying to implementa search engine for a page.
Each page has one keyword, which consisted of up to four words.
The engine operates on word by word basis, and it provides a function to search
one word, or to search two words by OR and AND operations. Also the search engi
ne provides a function that conceals a page with a specific word. In this probl
em, this function is denoted as 'Block'.

Table+

CA Mode	Mode1	Mode2	Mode3	Mode4
1st Reconfig (After RRCConnectionSetup)	A3	A3, A2	A3, A4	A3, A6
2nd Reconfig(Mode3, After Scell Add)	-	-	A3(is or not), A2, A6, A4(3xCA)	-
3rd Reconfig(3xCA, Mode3, After 2nd Scell Add)	-	-	A3(is or not), A2, A6	-
After Scell Release(Mode2,3)	-	A3, A4	A3, A4	-
After Scell Add(Mode2)	-	A3, A2	-	-

Table-