Because a bounding lcp of /a, b) must be within (c, d) and an interior lcp of (a, b) must be a bounding lcp of (c,d), SIL ((c,d)) <_ LBL((a,b)) <_ SIL((a,b)) <_ LBL ((c,d)).
the overlapped interval (c, d) is not lcp-delimited.