How can I remove particular row as defined

I have the folloing table:

    Tool1  Mek  Ar  10.0   40.5 
    Tool1  Lahi  BM2  13.0   89.4 
    Tool1  Ar  Ar  34.0   67.8 
    Tool1  Puni  Raj  41.0   89.9 
    Tool1  Jak  Ar  20.0   78.3 
    Tool1  Lahi  Lahi  12.0   99.0 
    Tool1  N2  BM2  14.0   89.0 
    Tool1  Ar  Mek  25.0   95.7 
    Tool1  Puni  Puni  17.0   90.6 
    Tool1  Raj  Jak  20.0   100.0

uncommon list:

Ar
BM2
N2

I want to remove a particular row:
1. If the name in second column & third column (of any row) is equal (I mean same)
2. If the name in third column (of any row) belongs to uncommon list

As in rows 1,2,3,5,&7 of third column belongs to uncommon list (so the rows 1,2,3,5,7 should be removed), and in rows 6 & 9 the names in columns 2 & 3 are equal (same), agani these rows 6&9 should be removed. Therefore, finally I should get the below answer,

Tool1  Puni  Raj  41.0   89.9 
Tool1  Ar  Mek  25.0   95.7 
Tool1  Raj  Jak  20.0   100.0

Many thanks in advance.

[Azzi Abdelmalek]

Duplicate question http://www.mathworks.com/matlabcentral/answers/261619-how-to-remove-particular-row