Table 2 LCS grammar for travel agency scenario

From: Incremental stages of a semantic framework for automating the changes on long term composed services

Grammar	Explanation	Current composition	Change request
L → (S1.S2). ((S3.S4)*S5)	S1 = login		(op1/op2)/((op3/op4)*op6)
S1 → OP1	S2 = book flight ticket
S2 → OP2	S3 = book cab
S3 → OP3	S4 = book hotel
S4 → OP4	S5 = weather services	(op1/op2)/((op3/op4)*op5)
S5 → OP5	OP1 = get_credentials
S6 → OP6	OP2 = get_cust details
	OP3 = get_flightdetails
	OP4 = get_returndate
	OP5 = get_temperature

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